TY  - BOOK
AU  - Agarwal, R. K.
AU  - Sangal, V. K.
AU  - Edited by: Goel, Nishi
TI  - Environmental studies
SN  - 8182830249
U1  - 628 
PY  - 2005///
CY  - New Delhi
PB  - Krishna
KW  - Humanities
ER  -