TY  - BOOK
AU  - Bakshi, D.N.Guha
AU  - Sen, Subir
AU  - Banerjee, Samar Kumar
TI  - A Textbook of Environmental Science
U1  - 574.5 
PY  - 2001///
CY  - Kolkata
PB  - Calcutta Book House
KW  - Life Science
KW  - Ecology
ER  -