Citação norma APA
American Water Works Association, ebrary, Inc, & Stubbart, J. M. (2006). AWWA wastewater operator field guide. American Water Works Association.
Citação norma Chicago
American Water Works Association, Inc ebrary, and John M. Stubbart. AWWA Wastewater Operator Field Guide. Denver, Colo.: American Water Works Association, 2006.
Citação norma MLA
American Water Works Association, et al. AWWA Wastewater Operator Field Guide. American Water Works Association, 2006.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.