Jefkins, F. (1983). Dictionary of marketing advertising and public relations (2nd ed.). International text book.
Dyfyniad Arddull ChicagoJefkins, Frank. Dictionary of Marketing Advertising and Public Relations. 2nd ed. London: International text book, 1983.
Dyfyniad MLAJefkins, Frank. Dictionary of Marketing Advertising and Public Relations. 2nd ed. International text book, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.