MLA

Nielsen, Per Halkjaer, et al. Fish Handbook for Biological Wastewater Treatment. IWA Publishing, 2009.

APA

Nielsen, P. Halkjaer, Daims, H., Arslan-Alaton, I., Lemmer, H., & Olmez-Hanci, T. (2009). FISH Handbook for Biological Wastewater Treatment. IWA Publishing.

Chicago

Nielsen, Per Halkjaer, Holger Daims, Idil Arslan-Alaton, Hilde Lemmer, and Tugba Olmez-Hanci. FISH Handbook for Biological Wastewater Treatment. : IWA Publishing, 2009.