Kwangtung Province / prepared under the direction of the Chief of Engineers, by the Army Map Service.
MLA
Service, United States. Army Map. Kwangtung Province / Prepared under the Direction of the Chief of Engineers, by the Army Map Service. Army Map Service, 1945. https://collections.library.yale.edu/catalog/15510635.
APA, 6th edition
Service, U. S. A. M. (1945). Kwangtung Province / prepared under the direction of the Chief of Engineers, by the Army Map Service. [Maps]. Army Map Service, https://collections.library.yale.edu/catalog/15510635.