TY  - BOOK
AU  - Gupta, K.M.
TI  - Envirnmental studies
SN  - 8188114502
U1  - 577.14 
PY  - 2009///
CY  - New Delhi
PB  - Umesh Publication
KW  - Applied Sc
KW  - Chemistry
KW  - Environmental Science
ER  -