TY  - BOOK
AU  - Chawla,Shashi
TI  - Textbook of Environmental studies
SN  - 9781259006388
U1  - 372.357 
PY  - 2013///
CY  - New Delhi
PB  - McGraw Hill Education ( India) Pvt Ltd
KW  - Natural Resource
KW  - Field Work
KW  - Social Issues and the enviorment
KW  - Biodiversity and its Conservation
KW  - Ecosystem
ER  -