TY  - BOOK
AU  - Kaushik, Anubha; Kaushik, C. P.
TI  - Perspectives in environmental studies
SN  - 9788122417555
U1  - 333.7071 KAU/P 
PY  - 2001///
CY  - Usa
PB  - Mcgraw Hill Book Company
KW  - Biology
ER  -