MLA

of State. Division of Map Intelligence, United States. Department, and Cartography. Japan. Okayama-Ken : Administrative Divisions, November 1943 / G.P.O. - Department of State Service Office. Dept. of State, Map Division, 1947. https://collections.library.yale.edu/catalog/15511627.

APA, 6th edition

of State. Division of Map Intelligence, U. S. D., & C. (1947). Japan. Okayama-ken : administrative divisions, November 1943 / G.P.O. - Department of State Service Office. [Maps]. Dept. of State, Map Division, https://collections.library.yale.edu/catalog/15511627.