Dyfyniad APA

ebrary, Inc. (2008). Dawn of the replacement era: Reinvesting in drinking water infrastructure. American Water Works Association.

Dyfyniad Arddull Chicago

ebrary, Inc. Dawn of the Replacement Era: Reinvesting in Drinking Water Infrastructure. Denver, Colo.: American Water Works Association, 2008.

Dyfyniad MLA

ebrary, Inc. Dawn of the Replacement Era: Reinvesting in Drinking Water Infrastructure. American Water Works Association, 2008.

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