APA (7th ed.) Citation

United States. Office of Strategic Services. Research and Analysis Branch. (1943). Waterway system of the Ruhr area. R & A, OSS.

Chicago Style (17th ed.) Citation

United States. Office of Strategic Services. Research and Analysis Branch. Waterway System of the Ruhr Area. [Washington, D.C.]: R & A, OSS, 1943.

MLA (8th ed.) Citation

United States. Office of Strategic Services. Research and Analysis Branch. Waterway System of the Ruhr Area. R & A, OSS, 1943.