Lyons, P. (1992). Thirty five lesson formats: A sourcebook of instructional alternatives. Educational Technology Publications.
Chicago-viite (17. p.)Lyons, Paul. Thirty Five Lesson Formats: A Sourcebook of Instructional Alternatives. Englewood Cliffs: Educational Technology Publications, 1992.
MLA-viite (9. p.)Lyons, Paul. Thirty Five Lesson Formats: A Sourcebook of Instructional Alternatives. Educational Technology Publications, 1992.
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