TY  - BOOK
AU  - Bhatia, A L
TI  - Textbook of environmental biology
SN  - 9788188237876
PB  - I K International
KW  - Air pollution
KW  - Biogeochemical cycles
KW  - Ecology and encironment
KW  - Ecosystem
KW  - Environmental biology
KW  - Environmental pollution
KW  - Natural resources
KW  - Soil pollution
KW  - Water pollution
N1  - Includes index
ER  -