TY  - GEN
AU  - Saha,T.K.
TI  - Ecology and environmental  biology
U1  - 574.5 
PY  - 2007///
CY  - 2007.
PB  - Books and Allied (P.) Ltd.
KW  -  Environmental  biology
KW  - Ecology
KW  - Principles of ecology
ER  -