APA (7th ed.) Citation

Ettlich, W. F. (1978). A comparison of oxidation ditch plants to competing processes for secondary and advanced treatment of municipal wastes. Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory, Wastewater Research Division ; Springfield, Va..

Chicago Style (17th ed.) Citation

Ettlich, William F. A Comparison of Oxidation Ditch Plants to Competing Processes for Secondary and Advanced Treatment of Municipal Wastes. Cincinnati, Ohio: Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory, Wastewater Research Division ; Springfield, Va., 1978.

MLA (9th ed.) Citation

Ettlich, William F. A Comparison of Oxidation Ditch Plants to Competing Processes for Secondary and Advanced Treatment of Municipal Wastes. Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory, Wastewater Research Division ; Springfield, Va., 1978.