American Water Works Association & ebrary, Inc. (2001). Emergency planning for water utilities (4th ed.). American Water Works Association.
Chicago (17e ed.) BronvermeldingAmerican Water Works Association en Inc ebrary. Emergency Planning for Water Utilities. 4th ed. Denver, Colo.: American Water Works Association, 2001.
MLA (9e ed.) BronvermeldingAmerican Water Works Association en Inc ebrary. Emergency Planning for Water Utilities. 4th ed. American Water Works Association, 2001.
Let op: Deze citaties zijn niet altijd 100% accuraat.