1. Allen, William H. “Audio-Visual Communication.”Encyclopedia of Educational Research. Third edition. (Edited by Chester W. Harris.) New York: Macmillan Co., 1960. pp. 115–37.
2. Broadbent, D. E.Perception and Communication. New York: Pergamon Press, 1958.
3. Doctor’s thesis;John G. Burdick,1959
4. Davis, O. L., Jr.; Hicks, Linda C.; and Bowers, Norman D.“The Usefulness of Time Lines in Learning Chronological Relationships in Text Materials.”Journal of Experimental Education; in press.
5. Guilford, J. P. “Some New Looks at the Nature of Creative Processes.”Contributions to Mathematical Psychology. (Edited by Norman Frederiksen and Harold Gulliksen.) New York: Holt, Rinehart and Winston, Inc., 1964. pp. 161–82.