TY  - GEN
AU  - Datta, Amal K
TI  - Introduction to environmental science and engineering
SN  - 81-204-1393-8
U1  - 363.73 DAT/IN 
CY  - New Delhi, Oxford and IBH publishing co pvt ltd
KW  - Ecology
KW  - Pollution
KW  - protection laws and Standards
ER  -