TY  - BOOK
AU  - Sharma, P.D.
TI  - Ecology and environment: a text book for  university students
SN  - 9350781220
U1  - 363.7 
PY  - 2016///-2017
CY  - New Delhi
PB  - Rastogi Publications
KW  - Ecology
KW  - Environmental sciences
ER  -