TY  - BOOK
AU  - C. Manoharachary
AU  - C. Maoharachary and other
TI  - Principles of Environmental Studies
SN  - 978-93-88-30-539-6
U1  - 333.7 
PY  - 2019///
CY  - Sultan Bazar
PB  - BS Publishers
ER  -