TY  - BOOK
AU  - PANDEY (G N)
AU  - PANDEY (G C)
TI  - Environmental engineering
SN  - 0 07 451819 4
U1  - 620.8 PANE 
PY  - 1991///
CY  - ND
PB  - Tata McGraw-Hill Publishing Company Ltd.
KW  - Environmental
KW  - engineering
ER  -