TY  - BOOK
AU  -  Henry, J. Glynn.,
AU  - Heinke, Gary W.,
TI  - Environmental science and engineering
SN  - 9788120326057
U1  - 628 HEN 
PY  - 1996///
CY  - New Delhi
PB  - PHI Learning
N1  - Previous ed.: 1989.
ER  -