Von Sperling, M. (2007). Activated Sludge and Aerobic Biofilm Reactors. IWA Publishing.
Čikaški stil citiranja (17. izdanje)Von Sperling, Marcos. Activated Sludge and Aerobic Biofilm Reactors. IWA Publishing, 2007.
MLA način citiranja (9. izdanje)Von Sperling, Marcos. Activated Sludge and Aerobic Biofilm Reactors. IWA Publishing, 2007.
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