MLA

of Strategic Services, United States. Office. Average Daily Movement of Passenger Trains on the German National Railroad of Central Germany. lithographed in the Reproduction Branch, OSS, 1944. https://collections.library.yale.edu/catalog/15479691.

APA, 6th edition

of Strategic Services, U. S. O. (1944). Average daily movement of passenger trains on the German National Railroad of central Germany. [Maps]. lithographed in the Reproduction Branch, OSS, https://collections.library.yale.edu/catalog/15479691.