MLA

of Strategic Services. Research, United States. Office, and Analysis Branch. China [Cartographic Material] / Drawn in the Branch of Research and Analysis, OSS. Reproduction Branch, OSS, 1944. https://collections.library.yale.edu/catalog/15510614.

APA, 6th edition

of Strategic Services. Research, U. S. O., & Branch, A. (1944). China [cartographic material] / drawn in the Branch of Research and Analysis, OSS. [Maps]. Reproduction Branch, OSS, https://collections.library.yale.edu/catalog/15510614.