Cite

"Greater" Germany, density of total population by Kreise or similar units.

MLA

of Strategic Services. Research, United States. Office, and Analysis Branch. "Greater" Germany, Density of Total Population by Kreise or Similar Units. R & A, OSS, 1945. https://collections.library.yale.edu/catalog/15479626.

APA, 6th edition

of Strategic Services. Research, U. S. O., & Branch, A. (1945). "Greater" Germany, density of total population by Kreise or similar units. [Maps]. R & A, OSS, https://collections.library.yale.edu/catalog/15479626.