TY  - BOOK
AU  - Verma,P.S
AU  - Agarwal,V.K
TI  - Environmental Biology (Principles of Ecology)
SN  - 978-81-219-0859-7
U1  - 570 
PY  - 2015///
CY  - New Delhi
PB  - S.Chand & Company Ltd
KW  - Pharmacy
ER  -