National Association of Broadcasters. Research Group. (1988). Successful radio promotions: From ideas to dollars. National Association of Broadcasters.
Παραπομπή σε μορφή Chicago (17η εκδ.)National Association of Broadcasters. Research Group. Successful Radio Promotions: From Ideas to Dollars. Washington, D.C: National Association of Broadcasters, 1988.
Παραπομπή σε μορφή MLA (9th εκδ.)National Association of Broadcasters. Research Group. Successful Radio Promotions: From Ideas to Dollars. National Association of Broadcasters, 1988.
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