Allen, L. R. (1970). An Evaluation of Certain Cognitive Aspects of the Material Objects Unit of the Science Curriculum Improvement Study Elementary Science Program. Journal of Research in Science Teaching, 7(4), 277-282.
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Cita Chicago Style (17a ed.)
Allen, Leslie R. "An Evaluation of Certain Cognitive Aspects of the Material Objects Unit of the Science Curriculum Improvement Study Elementary Science Program."
Journal of Research in Science Teaching 7, no. 4 (1970): 277-282.
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Cita MLA (9a ed.)
Allen, Leslie R. "An Evaluation of Certain Cognitive Aspects of the Material Objects Unit of the Science Curriculum Improvement Study Elementary Science Program."
Journal of Research in Science Teaching, vol. 7, no. 4, 1970, pp. 277-282.
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