American Water Works Association & ebrary, Inc. (2000). Principles of water rates, fees, and charges (5th ed.). American Water Works Association.
Chicago-Zitierstil (17. Ausg.)American Water Works Association und Inc ebrary. Principles of Water Rates, Fees, and Charges. 5th ed. Denver, Colo.: American Water Works Association, 2000.
MLA-Zitierstil (9. Ausg.)American Water Works Association und Inc ebrary. Principles of Water Rates, Fees, and Charges. 5th ed. American Water Works Association, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.