Karplus, R., & Thier, H. D. (1967). A new look at elementary school science: Science Curriculum Improvement Study. Rand McNally.
Chicago Style (17th ed.) CitationKarplus, Robert, and Herbert D. Thier. A New Look at Elementary School Science: Science Curriculum Improvement Study. Chicago: Rand McNally, 1967.
MLA citiranjeKarplus, Robert, and Herbert D. Thier. A New Look at Elementary School Science: Science Curriculum Improvement Study. Rand McNally, 1967.
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