Dyfyniad APA

ebrary, Inc. (1986). Drought management and its impact on public water systems: Report on a colloquium, Sept. 5, 1985. National Academy Press.

Dyfyniad Arddull Chicago

ebrary, Inc. Drought Management and Its Impact on Public Water Systems: Report on a Colloquium, Sept. 5, 1985. Washington, D.C.: National Academy Press, 1986.

Dyfyniad MLA

ebrary, Inc. Drought Management and Its Impact on Public Water Systems: Report on a Colloquium, Sept. 5, 1985. National Academy Press, 1986.

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