Formosa city plans 1:10,000. Toshien / prepared under the direction of the Chief of Engineers by the Army Map Service (AM), U.S. Army.
MLA
Service, United States. Army Map. Formosa City Plans 1:10,000. Toshien / Prepared under the Direction of the Chief of Engineers by the Army Map Service (AM), U.S. Army. The Service, 0AD. https://collections.library.yale.edu/catalog/15511689.
APA, 6th edition
Service, U. S. A. M. (0 C.E.). Formosa city plans 1:10,000. Toshien / prepared under the direction of the Chief of Engineers by the Army Map Service (AM), U.S. Army. [Maps]. The Service, https://collections.library.yale.edu/catalog/15511689.