Martin, D. J., & Janke, D. (1997). Elementary science methods: A constructivist approach. Delmar Publishers.
Chicago Style (17. basım) AtıfMartin, David Jerner, ve Delmar Janke. Elementary Science Methods: A Constructivist Approach. Albany: Delmar Publishers, 1997.
MLA (9th ed.) AtıfMartin, David Jerner, ve Delmar Janke. Elementary Science Methods: A Constructivist Approach. Delmar Publishers, 1997.
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