TY  - BOOK
TI  - Mofeed malumaat, vol.4
U1  - 577.13 22.
PY  - 1955///
CY  - Delhi
PB  - Maktaba Jamia Limited
KW  - Nature-Efect of human being on
KW  - Applied ecology
KW  - Environmental impact analysis
KW  - Ecological assesment (Biology)
KW  - Ecological engineering
ER  -