Collis, B. (1996). Tele-learning in a digital world: The future of distance learning. International Thomson Computer Press.
Citace podle Chicago (17th ed.)Collis, Betty. Tele-learning in a Digital World: The Future of Distance Learning. London: International Thomson Computer Press, 1996.
Citace podle MLA (9th ed.)Collis, Betty. Tele-learning in a Digital World: The Future of Distance Learning. International Thomson Computer Press, 1996.
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