APA-Zitierstil (7. Ausg.)

Holmberg, B. (1995). Theory and practice of distance education (2nd ed.). Routledge.

Chicago-Zitierstil (17. Ausg.)

Holmberg, Borje. Theory and Practice of Distance Education. 2nd ed. London: Routledge, 1995.

MLA-Zitierstil (9. Ausg.)

Holmberg, Borje. Theory and Practice of Distance Education. 2nd ed. Routledge, 1995.