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Last edited by Open Library Bot
December 5, 2010 | History

The relative effectiveness of two methods of instruction in teaching the classificational concepts of physical and chemical change to elementary school children 1 editions

The relative effectiveness of two methods of instruction in teaching t ...
Alan M. Voelker
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1 edition

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History

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December 5, 2010 Edited by Open Library Bot Added subjects from MARC records.
December 10, 2009 Created by WorkBot add works page