MLA

of Strategic Services. Research, United States. Office, and Analysis Branch. Sakhalin (Including Karafuto) [Cartographic Material] / R & A, OSS. Lithographed in the Reproduction Branch, OSS, 1945. https://collections.library.yale.edu/catalog/15509694.

APA, 6th edition

of Strategic Services. Research, U. S. O., & Branch, A. (1945). Sakhalin (including Karafuto) [cartographic material] / R & A, OSS. [Maps]. Lithographed in the Reproduction Branch, OSS, https://collections.library.yale.edu/catalog/15509694.