APA-Zitierstil (7. Ausg.)

Keegan, D. (1996). Foundations of distance education (3. ed.). Routledge.

Chicago-Zitierstil (17. Ausg.)

Keegan, Desmond. Foundations of Distance Education. 3. ed. London [u.a.]: Routledge, 1996.

MLA-Zitierstil (9. Ausg.)

Keegan, Desmond. Foundations of Distance Education. 3. ed. Routledge, 1996.