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  1. 1

    Interests in science and technology education 12th IPN symposium per IPN Symposium (12th : 1984 : University of Kiel)

    Publicat 1985
    Llibre

    Interests in science and technology education 12th IPN symposium
  2. 2

    The Structure of science education

    Publicat 1975
    Llibre

    The Structure of science education

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