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241. Drainage and sanitation/ E.H. Blake and W.R. Jenkins; revised by B. Gumbrell

by Blake, E.H | Jenkins, W.R4jt.aut.

Edition: 11th ed.Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: London: B.T. Batsford, 1956Availability: Items available for loan: National Library of India [Call number: E 628 B 581] (1).
242. Drainage and erosion control subsurface drainage facilities for airfield pavements / United States Department of Army

by United States. Department of the Army | United States. Department of Army. Corps of Engineers. Engineering and design: drainage for areas other than airfields.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington, D.C. : The Department, 1979Availability: Items available for loan: National Library of India [Call number: U.S 627.540202 Un 3] (1).
243. The drain theory : proceedings / the Indian Economic Conference on The Drain Theory held at Hydrabad on 1968

by Indian Economic Conference on The Drain Theory (1968 : Hydrabad).

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Bombay : Popular Prakashan, 1965Availability: Items available for loan: National Library of India [Call number: E/O 330.954 In 2 d] (1).
244. Doukkala-Zemamra sprinkler irrigation system : agreement between the United States of America and Morocco / United States, Department of State

by United States. Department of State | Morocco | United States.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington, D. C. : The Department, 1977Availability: Items available for loan: National Library of India [Call number: U.S 333.913 Un 3] (1).
245. The Distribution and Conservation of Threatened Sphaeriidae on British Grazing Marshland

by Watson, Alisa M | Ormerod, S J.

Source: Biodiversity and Conservation Availability: Items available for loan: Indira Gandhi Rashtriya Manav Sangrahalaya (1).
246. The Distribution and Conservation of Threatened Sphaeriidae on British Grazing Marshland

by Watson, Alisa M | Ormerod, S J.

Source: Biodiversity and Conservation Availability: Items available for loan: Indira Gandhi Rashtriya Manav Sangrahalaya (1).
247. Dewatering of mine drainage sludge

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington, D.C. : U.S. Environmental Protection Agency, 1971Availability: Items available for loan: National Library of India [Call number: U.S 628.1683 D 512] (1).
248. Development of water purification systems based on reserse osmosis / United States, Department of Interior

by United States. Department of Interior.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington, D.C. : The Department, 1969Availability: Items available for loan: National Library of India [Call number: U.S 628.1683 Un 3] (1).
249. Development of ultra thin reverse osmosis membranes for desalination / by L. T. Rozelle ... [et al.]

by Rozelle, L. T [jt. aut].

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington, D.C. : U.S. Government Printing Office, 1971Availability: Items available for loan: National Library of India [Call number: U.S 628.1683 D 492] (1).
250. Development of this-liquid-film membrane device for reverse osmosis / by D. S. Davies

by Davies, D. S | United States. Department of Interior.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington, D.C. : U.S. Government Printing Office, 1971Availability: Items available for loan: National Library of India [Call number: U.S 628.1683 D 286] (1).
251. Development of reverse osmosis desalination membranes / by S. Manjikian and C. Allen

by Manjikian, S | Allen, C [jt. aut] | United States. Department of Interior.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington, D.C. : U.S. Government Printing Office, 1968Availability: Items available for loan: National Library of India [Call number: U.S 628.1683 M 314] (1).
252. Development of poly phenylene oxide membranes / United States, Department of Interior

by United States. Department of Interior.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington, D.C. : The Department, 1971Availability: Items available for loan: National Library of India [Call number: U.S 628.1683 Un 3] (1).
253. Development of modified protein films for desalination by reverse osmosis / by Norman R. S. Hollies, Helen Y. Hsiao [and] Barbara S. Watson

by Hollies, Norman R. S | Hsiao, Helen Y [jt. aut] | Watson, Barbara S [jt. aut].

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington, D.C. : U.S. Government Printing Office, 1971Availability: Items available for loan: National Library of India [Call number: U.S 628.1683 H 724] (1).
254. Development of modified polyolefin membrans for reserve osmosis / by H. F. Hamil

by Hamil, H. F.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington, D.C. : U.S. Government Printing Office, 1970Availability: Items available for loan: National Library of India [Call number: U.S 628.1683 H 18] (1).
255. Development of desalination membranes / United States Department of Interior

by United States. Department of Interior | United States. Office of Saline Water.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington, D.C. : The Department, 1970Availability: Items available for loan: National Library of India [Call number: U.S 628.167 Un 3] (1).
256. Development of desalination membranes / United States Department of Interior

by United States. Department of Interior | United States. Office of Saline Water.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington, D.C. : The Departement, 1970Availability: Items available for loan: National Library of India [Call number: U.S 628.167 Un 3] (1).
257. Development of desalination membranes / by Herman S. Schultz and Nathan D. Field

by Schultz, Herman S, 1924- | Field, Nathan D, 1925- [jt. aut] | United States. Office of Saline Water | United States. Department of Interior.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington : U.S. Government Printing Office, 1970Availability: Items available for loan: National Library of India [Call number: U.S 628.167 Sch 82] (1).
258. Development of a thin-liquid-film membrane unit for desalination by reverse osmosis / by D. S. Davies

by Davies, D. S [jt. aut] | United States. Department of Interior.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington, D.C. : U.S. Government Printing Office, 1968Availability: Items available for loan: National Library of India [Call number: U.S 628.1683 D 492] (1).
259. Development credit agreement (Nile Delta Drainange Project) between United Arab Republic and International development Association : dated April 17, 1970

by International Development Association(Washington) [pbl] | World Bank (Washington).

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington : International Development Associatio,n 1970Availability: Items available for loan: National Library of India [Call number: U.N 332.15 Ag 84 d (181 Uar)] (1).
260. Development credit agreement (Lahore Water supply, Swerage and Drainage Project) between International Development Association and Islamic Republic of Pakistan : dated May 12, 1967

by International Bank for Reconstruction and Developement (Washington, D.C.) [pbl] | World Bank (Washington).

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington,D.C. : International Development Association, 1967Availability: Items available for loan: National Library of India [Call number: U.N 332.15 Ag 84 d (106 Pak)] (1).