Cita APA (7a ed.)

United States. Department of the Army. Corps of Engineers. Army Map Service. (1949). Santarém. Army Map Service.

Cita Chicago Style (17a ed.)

United States. Department of the Army. Corps of Engineers. Army Map Service. Santarém. New York: Army Map Service, 1949.

Cita MLA (8a ed.)

United States. Department of the Army. Corps of Engineers. Army Map Service. Santarém. Army Map Service, 1949.