MLA

of Strategic Services. Research, United States. Office, and Analysis Branch. Tōkyō, Ōmori-Ku, Guide to Postal Districts = Ōmori-Ku shōsaizu. Reproduction Branch, OSS, 1945. https://collections.library.yale.edu/catalog/15511573.

APA, 6th edition

of Strategic Services. Research, U. S. O., & Branch, A. (1945). Tōkyō, Ōmori-ku, guide to postal districts = Ōmori-ku shōsaizu. [Maps]. Reproduction Branch, OSS, https://collections.library.yale.edu/catalog/15511573.