American Water Works Association & ebrary, Inc. (2001). Emergency planning for water utilities (4th ed.). American Water Works Association.
Chicago Style (17. basım) AtıfAmerican Water Works Association ve Inc ebrary. Emergency Planning for Water Utilities. 4th ed. Denver, Colo.: American Water Works Association, 2001.
MLA (9th ed.) AtıfAmerican Water Works Association ve Inc ebrary. Emergency Planning for Water Utilities. 4th ed. American Water Works Association, 2001.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..