Dyfyniad APA

Von Sperling, M. (2007). Activated Sludge and Aerobic Biofilm Reactors. IWA Publishing.

Dyfyniad Arddull Chicago

Von Sperling, Marcos. Activated Sludge and Aerobic Biofilm Reactors. IWA Publishing, 2007.

Dyfyniad MLA

Von Sperling, Marcos. Activated Sludge and Aerobic Biofilm Reactors. IWA Publishing, 2007.

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