Association for Educational and Training Technology. (1989). International yearbook of educational and training technology. Kogan Page.
Citace podle Chicago (17th ed.)Association for Educational and Training Technology. International Yearbook of Educational and Training Technology. London: Kogan Page, 1989.
Citace podle MLA (9th ed.)Association for Educational and Training Technology. International Yearbook of Educational and Training Technology. Kogan Page, 1989.
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