TY  - GEN
AU  - Awasthi, Ashok
TI  - Environmental studies: Concepts with MCQs
SN  - 9788197240379
U1  - 363.7 
PY  - 2025///
CY  - New Delhi
PB  - Ane Publishers and Distributors
KW  - Environmental Studies
KW  - Social Problams
ER  -