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Dyfyniad Arddull ChicagoYoung, James Webb. How to Become an Advertising Man. Chicago, Ill: Advertising Pub, 1963.
Dyfyniad MLAYoung, James Webb. How to Become an Advertising Man. Advertising Pub, 1963.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.