TY  - BOOK
AU  - Roy Sovan
TI  - Environmental science: a comperehensive treatise on ecology and environment
SN  - 8187704004 (pbk)
U1  - G:55, P3   TG 
PY  - 2003///
CY  - Kolkata
PB  - Publishing Syndicate        
KW  -  Biology
KW  -  Ecology
KW  - Environmental science
N1  - Glossary 517-534p
ER  -