Cite

Korea city plans 1:10,000 : Hamhung (Kanko).

MLA

Service, United States. Army Map. Korea City Plans 1:10,000 : Hamhung (Kanko). Army Map Service, 1945. https://collections.library.yale.edu/catalog/15511662.

APA, 6th edition

Service, U. S. A. M. (1945). Korea city plans 1:10,000 : Hamhung (Kanko). [Maps]. Army Map Service, https://collections.library.yale.edu/catalog/15511662.