(1974). Science for kindergarten: Teacher's guide (Preliminary ed.). Science Curriculum Improvement Study.
Chicago-viite (17. p.)Science for Kindergarten: Teacher's Guide. Preliminary ed. Berkeley, CA: Science Curriculum Improvement Study, 1974.
MLA-viite (9. p.)Science for Kindergarten: Teacher's Guide. Preliminary ed. Science Curriculum Improvement Study, 1974.
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