Water Environment Federation, ebrary, Inc, & Bowman, D. (2009). Manure pathogens: Manure management, regulations, and water quality protection (First edition.). Water Environment Federation Press McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Water Environment Federation, Inc ebrary, agus Dwight Bowman. Manure Pathogens: Manure Management, Regulations, and Water Quality Protection. First edition. Alexandria, Va., New York: Water Environment Federation Press McGraw-Hill, 2009.
Lua MLA (9ú heag.)Water Environment Federation, et al. Manure Pathogens: Manure Management, Regulations, and Water Quality Protection. First edition. Water Environment Federation Press McGraw-Hill, 2009.
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