TY  - BOOK
AU  - Sulphey, M.M.
AU  - Safeer,  M.M.
TI  - Introduction to environment management
SN  - 9788120353510
U1  - S 333.7E   
PY  - 2017///
CY  - Delhi
PB  - PHI Learning
KW  - Environmental Management
ER  -