MLA

of Engineers, United States. Army. Corps. Alcazarquivir ; City Plan. Prepared under the Direction of the Chief of Engineers, U. S. Army. Army Map Service, U. S. Army, 1943. https://collections.library.yale.edu/catalog/15534060.

APA, 6th edition

of Engineers, U. S. A. C. (1943). Alcazarquivir ; city plan. Prepared under the direction of the chief of engineers, U. S. Army. [Maps]. Army Map Service, U. S. Army, https://collections.library.yale.edu/catalog/15534060.