Distance Education Conference University of South Africa, University of South Africa. Bureau for Teaching Development, & Adey, D. (1987). Distance education in Southern Africa: Preparing for the 21st century, 18-21 May 1987 : papers. University of South Africa.
Chicago-referens (17:e uppl.)Distance Education Conference University of South Africa, University of South Africa. Bureau for Teaching Development, och David Adey. Distance Education in Southern Africa: Preparing for the 21st Century, 18-21 May 1987 : Papers. [Pretoria]: University of South Africa, 1987.
MLA-referens (8:e uppl.)Distance Education Conference University of South Africa, et al. Distance Education in Southern Africa: Preparing for the 21st Century, 18-21 May 1987 : Papers. University of South Africa, 1987.