TY  - BOOK
AU  - Purwar, Anuj Kumar
TI  - Environment and Ecology
SN  - 978-93-89872-84-2
AV  - 363.7 R0;3 
U1  - 363.7 R0;3 
PY  - 2020///
CY  - New Delhi
PB  - IK International Pvt. Ltd. 
KW  - Environmental problems,Economics
ER  -