TY  - BOOK
AU  - Acharjee,N. .
AU  - Dhar, P. 	.
TI  - Enivironmental studies
SN  - 978-93-80673-97-4
U1  - 363.7 
PY  - 2018///
CY  - Kolkata
PB  - U.N. Dhur & Sons
KW  - General
ER  -