TY  - BOOK
AU  - AGRAWAL,K.M.
AU  - SIKDAR,P.K.
AU  - DEB,S.C.
TI  - A Textbook of environment
SN  - 0333937473
U1  - ENV 301.3 
PY  - 2002///
CY  - Kolkata
PB  - Macmillan
KW  - ENVIRONMENTAL SCIENCES
N1  - for B.A,B.SC and B.COM students
ER  -