APA-Zitierstil (7. Ausg.)

Garrison, D. R. (1990). Understanding distance education: A framework for the future (Repr.). Routledge.

Chicago-Zitierstil (17. Ausg.)

Garrison, D. Randy. Understanding Distance Education: A Framework for the Future. Repr. London u.a: Routledge, 1990.

MLA-Zitierstil (9. Ausg.)

Garrison, D. Randy. Understanding Distance Education: A Framework for the Future. Repr. Routledge, 1990.