TY  - BOOK
AU  - CHAWLA SHASHI
TI  - A TEXTBOOK OF ENVIRONMENTAL STUDIES
SN  - 9.78126E+12
U1  - 375.008 3 CHA 
CY  - NEW DELHI
KW  - ENVIRONMENTAL SCIENCE
KW  - ENVIRONMENTAL STUDIES
N1  - UNDER TEQIP PHASE - II
ER  -