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National Association for Research in Science Teaching (National Association for Research in Science Teaching, 1973-06)

National Association for Research in Science Teaching (National Association for Research in Science Teaching, 1973-03)

National Association for Research in Science Teaching (National Association for Research in Science Teaching, 1973-03)

National Association for Research in Science Teaching (National Association for Research in Science Teaching, 1973-12)

National Association for Research in Science Teaching (National Association for Research in Science Teaching, 1973-01)

National Association for Research in Science Teaching (National Association for Research in Science Teaching, 1973-09)