TY  - BOOK
AU  - Shah, Prabha
AU  - Nakra, A. N.,
TI  - Environmental Studies
SN  - 9788193457313
U1  - 363.7 
PY  - 2017///
CY  - New Delhi
PB  - P. Jamnada LLP.
N1  - This book is having a bibliography
ER  -