(2006). Distribution valves: Selection, installation, field testing, and maintenance (2nd ed.). American Water Works Association.
Chicago-Zitierstil (17. Ausg.)Distribution Valves: Selection, Installation, Field Testing, and Maintenance. 2nd ed. Denver, Colo: American Water Works Association, 2006.
MLA-Zitierstil (9. Ausg.)Distribution Valves: Selection, Installation, Field Testing, and Maintenance. 2nd ed. American Water Works Association, 2006.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.