Unwin, D. (1969). Media and methods: Instructional technology in higher education. McGraw-Hill.
Chicago-viite (17. p.)Unwin, Derick. Media and Methods: Instructional Technology in Higher Education. Londres: McGraw-Hill, 1969.
MLA-viite (9. p.)Unwin, Derick. Media and Methods: Instructional Technology in Higher Education. McGraw-Hill, 1969.
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