Cita APA (7th ed.)
(1951). Annual report of the national labor relations board. U.S. Governm. Print. Office.
Cita Chicago (17th ed.)
Annual Report of the National Labor Relations Board. Washington: U.S. Governm. Print. Office, 1951.
Cita MLA (9th ed.)
Annual Report of the National Labor Relations Board. U.S. Governm. Print. Office, 1951.
Atenció: Aquestes cites poden no estar 100% correctes.