APA (7th ed.) Citation

Great Britain. War Office. General Staff. Geographical Section, Great Britain. Ordnance Survey, & Edward Stanford Ltd. (1911). Africa 1: 250,000. War Office.

Chicago Style (17th ed.) Citation

Great Britain. War Office. General Staff. Geographical Section, Great Britain. Ordnance Survey, and Edward Stanford Ltd. Africa 1: 250,000. [London?]: War Office, 1911.

MLA (8th ed.) Citation

Great Britain. War Office. General Staff. Geographical Section, et al. Africa 1: 250,000. War Office, 1911.