APA (7th ed.) Citation

Geological Survey (U.S.) & Geological Survey (U.S.). (1951). Contributions to the hydrology of the United States 1945-47. [publisher not identified].

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Geological Survey (U.S.). Contributions to the Hydrology of the United States 1945-47. [Place of publication not identified]: [publisher not identified], 1951.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Geological Survey (U.S.). Contributions to the Hydrology of the United States 1945-47. [publisher not identified], 1951.