MLA

Section, Great Britain. War Office. General Staff. Geographical. Bahrein Island. Compiled from Air Photographs in A. H. Q. Drawing Office, Hinaidi, 1937. Drawn ... by O. S., 1939. Army Map Service, U.S. Army, 1943. https://collections.library.yale.edu/catalog/15506420.

APA, 6th edition

Section, G. B. W. O. G. S. G. (1943). Bahrein island. Compiled from air photographs in A. H. Q. drawing office, Hinaidi, 1937. Drawn ... by O. S., 1939. [Maps]. Army Map Service, U.S. Army, https://collections.library.yale.edu/catalog/15506420.