TY  - BOOK
AU  - Hansen,Sigurd P.
AU  - Gumenman,Robert C.
AU  - Culp,Russell L.
ED  - United States.
TI  - Estimating water treatment costs
U1  -  628.16 
PY  - 1979///-
CY  - Cincinnati
PB  - U.S. Government Printing Office
KW  - Water
KW  - Purification
KW  - Sewage
KW  - Biological treatment
N1  - V.3 cost curves applicable to 2,500 gpd to 1 mgd treatment; EPA-600/2-79-162 C; Library has v.3
ER  -