APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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