Dyfyniad APA

KEEGAN, D. (1996). Foundations of distance education.-- Ed. 3. Routledge.

Dyfyniad Arddull Chicago

KEEGAN, Desmond. Foundations of Distance Education.-- Ed. 3. London: Routledge, 1996.

Dyfyniad MLA

KEEGAN, Desmond. Foundations of Distance Education.-- Ed. 3. Routledge, 1996.

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