TY  - BOOK
AU  - Johnson,E.D.
ED  - United States.
TI  - Environmental monitoring of a wastewater treatment plant
U1  -  628.3 
PY  - 1979///
CY  - Washington, D. C.
PB  - United States Environmental Protection Agency
KW  - Sewage disposal plants
KW  - Sewage
KW  - Purification
KW  - Biological treatment
KW  - Sewage sludge
KW  - Management
N1  - EPA-600/179-027
ER  -