Procedures for evaluating performance of wastewater treatment  plants
Subtitle: a manual.
Contributors: United States. Environmental Protection Agency. Office of Water Programs.
Publisher: Environmental Protection Agency
Published: 1972
Place of publication: San Mateo, Calif
Language: eng
Subjects: Sewage -- Purification.; Sewage disposal plants.
Notes: "Prepared for Environmental Protection Agency, Office of Water  Programs, Washington, D.C., under Contract no. 68-01-0107."