American Water Works Association, ebrary, Inc, & Stubbart, J. M. (2006). AWWA wastewater operator field guide. American Water Works Association.
Chicago Style (17th ed.) CitationAmerican Water Works Association, Inc ebrary, and John M. Stubbart. AWWA Wastewater Operator Field Guide. Denver, Colo.: American Water Works Association, 2006.
MLA (9th ed.) CitationAmerican Water Works Association, et al. AWWA Wastewater Operator Field Guide. American Water Works Association, 2006.
Warning: These citations may not always be 100% accurate.