American Water Works Association, ebrary, Inc, & Stubbart, J. M. (2006). AWWA wastewater operator field guide. American Water Works Association.
芝加哥风格引文American Water Works Association, Inc ebrary, 与 John M. Stubbart. AWWA Wastewater Operator Field Guide. Denver, Colo.: American Water Works Association, 2006.
MLA引文American Water Works Association, et al. AWWA Wastewater Operator Field Guide. American Water Works Association, 2006.
警告:这些引文格式不一定是100%准确.