Dyfyniad APA

Harris, R. (1962). Advertising in action. London: The Institute of Economic Affairs.

Dyfyniad Arddull Chicago

Harris, Ralph. Advertising in Action. London: The Institute of Economic Affairs, 1962.

Dyfyniad MLA

Harris, Ralph. Advertising in Action. London: The Institute of Economic Affairs, 1962.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.