TY  - BOOK
AU  - Sharma,P.D.
TI  - Ecology and environment
SN  - 9789350781227
U1  - 910.1372357 
PY  - 2019///
CY  - Meerut
PB  - Rastogi Publications
KW  - Geography
KW  - Environment
KW  - Ecology
N1  - Includes glossary and index
ER  -