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National Association for Research in Science Teaching, issuing body, National Council of Supervisors of Elementary Science (U.S.), issuing body, National Council on Elementary Science (U.S.), issuing body, National Council for Elementary Science (U.S.), issuing body, Council of Elementary Science International, issuing body, Council for Elementary Science International, issuing body, . . . Association for the Education of Teachers in Science. Science Teacher Education Section, issuing body. (1929). Science education. John Wiley & Sons.

National Association for Research in Science Teaching, issuing body, issuing body National Council of Supervisors of Elementary Science (U.S.), issuing body National Council on Elementary Science (U.S.), issuing body National Council for Elementary Science (U.S.), issuing body Council of Elementary Science International, issuing body Council for Elementary Science International, issuing body Science Association of the Middle States (U.S.), issuing body Association for the Education of Teachers in Science, ja issuing body Association for the Education of Teachers in Science. Science Teacher Education Section. Science Education. [New York, N.Y.]: John Wiley & Sons, 1929.

National Association for Research in Science Teaching, issuing body, et al. Science Education. John Wiley & Sons, 1929.

National Association for Research in Science Teaching, i. b., National Council of Supervisors of Elementary Science (U.S.), i. b., National Council on Elementary Science (U.S.), i. b., National Council for Elementary Science (U.S.), i. b., Council of Elementary Science International, i. b., Council for Elementary Science International, i. b., . . . Association for the Education of Teachers in Science. Science Teacher Education Section, i. b. 1929. Science education. [New York, N.Y.]: John Wiley & Sons.