Collis, B. (1996). Tele-learning in a digital world: The future of distance learning. International Thomson Computer Press.
Citazione stile Chigago Style (17a edizione)Collis, Betty. Tele-learning in a Digital World: The Future of Distance Learning. London: International Thomson Computer Press, 1996.
Citatione MLA (9a ed.)Collis, Betty. Tele-learning in a Digital World: The Future of Distance Learning. International Thomson Computer Press, 1996.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.