MLA

of Strategic Services. Research, United States. Office, and Analysis Branch. Germany, Centers of Machine Tool Production / Board of Economic Warfare, Enemy Branch. R & A, OSS, 1943. https://collections.library.yale.edu/catalog/15479660.

APA, 6th edition

of Strategic Services. Research, U. S. O., & Branch, A. (1943). Germany, centers of machine tool production / Board of Economic Warfare, Enemy Branch. [Maps]. R & A, OSS, https://collections.library.yale.edu/catalog/15479660.