American Water Works Association & ebrary, Inc. (2001). Emergency planning for water utilities (4th ed.). American Water Works Association.
Chicago-Zitierstil (17. Ausg.)American Water Works Association und Inc ebrary. Emergency Planning for Water Utilities. 4th ed. Denver, Colo.: American Water Works Association, 2001.
MLA-Zitierstil (9. Ausg.)American Water Works Association und Inc ebrary. Emergency Planning for Water Utilities. 4th ed. American Water Works Association, 2001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.