Ogilvy, D. (1983). Ogilvy on advertising. New York: Random House.
Dyfyniad Arddull ChicagoOgilvy, David. Ogilvy On Advertising. New York: Random House, 1983.
Dyfyniad MLAOgilvy, David. Ogilvy On Advertising. New York: Random House, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.