Cite

European war zone map / made at Army Service Schools, Fort Leavenworth, Kas.

MLA

European War Zone Map / Made at Army Service Schools, Fort Leavenworth, Kas. Army Service Schools, 1914. https://collections.library.yale.edu/catalog/15237901.

APA, 6th edition

European war zone map / made at Army Service Schools, Fort Leavenworth, Kas. (1914). [Maps]. Army Service Schools, https://collections.library.yale.edu/catalog/15237901.