APA (7th ed.) Citation

Great Britain. War Office. General Staff. Geographical Section & United States. Army Map Service. (1942). Pico, San Jorge and Graciosa. Army Map Service, U.S. Army.

Chicago Style (17th ed.) Citation

Great Britain. War Office. General Staff. Geographical Section and United States. Army Map Service. Pico, San Jorge and Graciosa. Washington, D.C.: Army Map Service, U.S. Army, 1942.

MLA (9th ed.) Citation

Great Britain. War Office. General Staff. Geographical Section and United States. Army Map Service. Pico, San Jorge and Graciosa. Army Map Service, U.S. Army, 1942.