Ivany, J. W. G. (1975). Today's science: A professional approach to teaching elementary school science. Science Research Associates.
Chicago Style (17th ed.) CitationIvany, J. W. George. Today's Science: A Professional Approach to Teaching Elementary School Science. Chicago: Science Research Associates, 1975.
ציטוט MLAIvany, J. W. George. Today's Science: A Professional Approach to Teaching Elementary School Science. Science Research Associates, 1975.
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