MLA

of Strategic Services. Research, United States. Office, and Analysis Branch. France Railways [Cartographic Material]. R. and A., OSS, 1943. https://collections.library.yale.edu/catalog/15483868.

APA, 6th edition

of Strategic Services. Research, U. S. O., & Branch, A. (1943). France railways [cartographic material]. [Maps]. R. and A., OSS, https://collections.library.yale.edu/catalog/15483868.