TY  - BOOK
AU  - Henry, J. Glynn
AU  - Heinke, Gary W. 
TI  - Environmental science and engineering 
SN  - 9789332551749
U1  - 628.011 
PY  - 1996///
CY  - New Delhi
PB  - Pearson
KW  - Environmental eng
KW  - Environmental health
KW  - Water supply systems
ER  -