TY  - BOOK
AU  - Hammer,Mark J.
AU  - Sewage disposal
AU  - Water-supply engineering
TI  - Water and wastewater technology
SN  - 0132056267
U1  - TD/345 
PY  - 1986///
CY  - Englewood Cliffs
PB  - Prentice Hall Career & technology.
ER  -