Western battle front showing the fighting fronts of the United States Army and her allies [cartographic material] : from London, England to Basel, Switzerland / Geographical Publishing Co.
MLA
Co, Geographical Publishing. Western Battle Front Showing the Fighting Fronts of the United States Army and Her Allies [Cartographic Material] : from London, England to Basel, Switzerland / Geographical Publishing Co. Geographical Pub. Co., 1918. https://collections.library.yale.edu/catalog/15237954.
APA, 6th edition
Co, G. P. (1918). Western battle front showing the fighting fronts of the United States Army and her allies [cartographic material] : from London, England to Basel, Switzerland / Geographical Publishing Co. [Maps]. Geographical Pub. Co., https://collections.library.yale.edu/catalog/15237954.
