TY  - BOOK
AU  - Sulphey, M.M. 
AU  - Safeer,M.M.
TI  - Introduction to environment management
SN  - 9788120350700
U1  - 363.75 
PY  - 2015///
CY  - Delhi
PB  - PHI Learning
N1  - Includes bibliographical references and index
ER  -