Port plan of Emden.
MLA
of Strategic Services. Research, United States. Office, and Analysis Branch. Port Plan of Emden. R & A, OSS, 1944. https://collections.library.yale.edu/catalog/15476450.
APA, 6th edition
of Strategic Services. Research, U. S. O., & Branch, A. (1944). Port plan of Emden. [Maps]. R & A, OSS, https://collections.library.yale.edu/catalog/15476450.