Dyfyniad APA
American Water Works Association & ebrary, Inc. (2008). Distribution system requirements for fire protection (4th ed.). American Water Works Association.
Dyfyniad Arddull Chicago
American Water Works Association and Inc ebrary. Distribution System Requirements for Fire Protection. 4th ed. Denver, Colo.: American Water Works Association, 2008.
Dyfyniad MLA
American Water Works Association and Inc ebrary. Distribution System Requirements for Fire Protection. 4th ed. American Water Works Association, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.