Unwin, D. (1969). Media and methods: Instructional technology in higher education. McGraw-Hill.
Cita Chicago (17th ed.)Unwin, Derick. Media and Methods: Instructional Technology in Higher Education. Londres: McGraw-Hill, 1969.
Cita MLA (9th ed.)Unwin, Derick. Media and Methods: Instructional Technology in Higher Education. McGraw-Hill, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.