Dyfyniad APA
American Water Works Association & ebrary, Inc. (2004). Sizing water service lines and meters (2nd ed.). American Water Works Association.
Dyfyniad Arddull Chicago
American Water Works Association and Inc ebrary. Sizing Water Service Lines and Meters. 2nd ed. Denver, Colo.: American Water Works Association, 2004.
Dyfyniad MLA
American Water Works Association and Inc ebrary. Sizing Water Service Lines and Meters. 2nd ed. American Water Works Association, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.