TY  - BOOK
AU  - Arora,S.
TI  - Fundamentals of envionmental biology
U1  - 574.52 
PY  - 1985///
CY  - New Delhi
PB  - Kalyani Publishers
KW  - Enviornmental biology
KW  - Biology
KW  - Chemical enviornment
KW  - Aquatic ecosystems
ER  -