United States. Environmental Protection Agency. Office of Technology Transfer. (1974). Physical-chemical wastewater treatment plant design (Rev. [ed.] January 1974.). United States Environmental Protection Agency.
Čikaški stil citiranja (17. izdanje)United States. Environmental Protection Agency. Office of Technology Transfer. Physical-chemical Wastewater Treatment Plant Design. Rev. [ed.] January 1974. Washington, D.C.: United States Environmental Protection Agency, 1974.
MLA način citiranja (8. izdanje)United States. Environmental Protection Agency. Office of Technology Transfer. Physical-chemical Wastewater Treatment Plant Design. Rev. [ed.] January 1974. United States Environmental Protection Agency, 1974.
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