TY  - BOOK
AU  - Guha Bakshi, D.N.
AU  - Sen, Subir
TI  - A text book of environmental science:  for degree course (General and Honours) 
U1  - 304.28 
PY  - 2001///
CY  - Kolkata
PB  - Calcutta Book House (P) Ltd.
KW  - Environmental Science
KW  - Environment
ER  -