APA aipamena

National Association of Broadcasters (U.S.). (1933). Broadcasting in the United States. National Association of Broadcasters.

Chicago Style aipamena

National Association of Broadcasters (U.S.). Broadcasting in the United States. Washington, D.C.: National Association of Broadcasters, 1933.

MLA aipamena

National Association of Broadcasters (U.S.). Broadcasting in the United States. National Association of Broadcasters, 1933.