American Water Works Association & ebrary, Inc. (2006). Waterborne pathogens (2nd ed.). American Water Works Association.
Cita Chicago (17th ed.)American Water Works Association i Inc ebrary. Waterborne Pathogens. 2nd ed. Denver, Colo.: American Water Works Association, 2006.
Cita MLA (9th ed.)American Water Works Association i Inc ebrary. Waterborne Pathogens. 2nd ed. American Water Works Association, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.