TY  - BOOK
AU  - CHATWAL, Gurudeep R;SHARMA, Harish
TI  - Text book of environmental studies:environmental science: environmental science
SN  - 9789350515228
U1  - 333.707 CHA 
PY  - 2017///
CY  - Mumbai
PB  - Himalaya pubilishing house
KW  - Environmental studies (333.707)
N1  - all pollutions ; climatic changes ; ecosystems ; environmental ; human population ; studies ; waste products ; water management
ER  -