Cita APA

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

Citación estilo Chicago

USA. 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.

Cita MLA

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