TY  - BOOK
AU  - K.M. Agarwal, P.K. Sikdar, S.C. Deb
TI  - A Textbook of environment
SN  - 0333937473
U1  - 372.357 
PY  - 2002///
CY  - Chennai
PB  - Macmillan
KW  - K.M. Agarwal
KW  - P.K.Sikdar
KW  - S.C. Deb
KW  - Environmental studies
KW  - Ecology
ER  -