Washington, D.C. National Association of Broadcasters. Research Department, & National Association of Broadcasters. (1970). Standard definitions of broadcast research terms (Second edition.). Research Department, National Association of Broadcasters.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Washington, D.C. National Association of Broadcasters. Research Department, و National Association of Broadcasters. Standard Definitions of Broadcast Research Terms. Second edition. Washington, D.C: Research Department, National Association of Broadcasters, 1970.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Washington, D.C. National Association of Broadcasters. Research Department, و National Association of Broadcasters. Standard Definitions of Broadcast Research Terms. Second edition. Research Department, National Association of Broadcasters, 1970.