Schulberg, B. (1989). Radio advertising: The authoritative handbook. NTC Business Books.
Dyfyniad Arddull ChicagoSchulberg, Bob. Radio Advertising: The Authoritative Handbook. Lincolnwood, Ill: NTC Business Books, 1989.
Dyfyniad MLASchulberg, Bob. Radio Advertising: The Authoritative Handbook. NTC Business Books, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.