TY  - BOOK
AU  - Chawla, Shashi
TI  - Textbook of Environmental Studies
SN  - 9781259006388
U1  - 628 CHA 
PY  - 2012///
CY  - New Delhi
PB  - Tata McGraw-Hill Publishing Company
KW  - Environmental Pollution
KW  - Natural resources
N1  - <p><strong>Table of Contents:</strong><
ER  -