TY  - BOOK
AU  - Misra, S P
TI  - Essential environmental studies
U1  - 363.7 S691S(4) 
PY  - 2018///
CY  - New Delhi
PB  - ANE
N1  - 3193 20/07/2018 RBP18/71790 30/07/2018 Main Budget
ER  -