APA (7th ed.) Citation

(1918). Maps and artillery boards (2. ed. January 1918.). Harrison & Sons.

Chicago Style (17th ed.) Citation

Maps and Artillery Boards. 2. ed. January 1918. London: Harrison & Sons, 1918.

MLA (9th ed.) Citation

Maps and Artillery Boards. 2. ed. January 1918. Harrison & Sons, 1918.