Dyfyniad APA

United States. National Archives and Records Administration. (2000). Microfilm resources for research: A comprehensive catalog. National Archives Trust Fund Board, National Archives and Records Administration.

Dyfyniad Arddull Chicago

United States. National Archives and Records Administration. Microfilm Resources for Research: A Comprehensive Catalog. Washington, D.C.: National Archives Trust Fund Board, National Archives and Records Administration, 2000.

Dyfyniad MLA

United States. National Archives and Records Administration. Microfilm Resources for Research: A Comprehensive Catalog. National Archives Trust Fund Board, National Archives and Records Administration, 2000.

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