Dyfyniad APA

American Water Works Association & ebrary, Inc. (2012). Water meters: Selection, installation, testing, and maintenance (5th ed.). American Water Works Association.

Dyfyniad Arddull Chicago

American Water Works Association and Inc ebrary. Water Meters: Selection, Installation, Testing, and Maintenance. 5th ed. Denver, Colo.: American Water Works Association, 2012.

Dyfyniad MLA

American Water Works Association and Inc ebrary. Water Meters: Selection, Installation, Testing, and Maintenance. 5th ed. American Water Works Association, 2012.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.