Dyfyniad APA

Hartley, J. (1980). The Psychology of written communication: Selected readings. Kogan Page.

Dyfyniad Arddull Chicago

Hartley, James. The Psychology of Written Communication: Selected Readings. London: Kogan Page, 1980.

Dyfyniad MLA

Hartley, James. The Psychology of Written Communication: Selected Readings. Kogan Page, 1980.

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