Wales, C. E., & Stager, R. A. (1978). The guided design approach. Educational Technology Publications.
Chicago Style (17. basım) AtıfWales, Charles E., ve Robert A. Stager. The Guided Design Approach. Englewood Cliffs, N.J: Educational Technology Publications, 1978.
MLA (9th ed.) AtıfWales, Charles E., ve Robert A. Stager. The Guided Design Approach. Educational Technology Publications, 1978.
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