Craig, R. C., Clarizio, H. F., & Mehrens, W. A. (1977). Contemporary issues in educational psychology (Third edition.). Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)Craig, Robert C., Harvey F. Clarizio, agus William A. Mehrens. Contemporary Issues in Educational Psychology. Third edition. Boston: Allyn and Bacon, 1977.
Lua MLA (8ú heag.)Craig, Robert C., et al. Contemporary Issues in Educational Psychology. Third edition. Allyn and Bacon, 1977.
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