Cita APA (7a ed.)

United States. Civil Aeronautics Authority. (1939). Directory of airports and seaplane bases. U.S. Govt. Print. Off..

Cita Chicago Style (17a ed.)

United States. Civil Aeronautics Authority. Directory of Airports and Seaplane Bases. Washington: U.S. Govt. Print. Off., 1939.

Cita MLA (8a ed.)

United States. Civil Aeronautics Authority. Directory of Airports and Seaplane Bases. U.S. Govt. Print. Off., 1939.

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