APA

Estados Unidos. Army. Corps of Engineers. Army Map Service, . (1956). Cartographic conversion tables. Washington, D.C: Army Map Service.

Chicago

Estados Unidos. Army. Corps of Engineers. Army Map Service, . 1956. Cartographic conversion tables. Washington, D.C: Army Map Service.

Harvard

Estados Unidos. Army. Corps of Engineers. Army Map Service, . (1956). Cartographic conversion tables. Washington, D.C: Army Map Service.

MLA

Estados Unidos. Army. Corps of Engineers. Army Map Service, . Cartographic conversion tables. Washington, D.C: Army Map Service. 1956.