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  1. 1

    Educational technology its creation, development and cross-cultural transfer

    Publicat 1987
    Llibre

    Educational technology its creation, development and cross-cultural transfer
  2. 2

    Education, industry and technology

    Publicat 1987
    Llibre

    Education, industry and technology
  3. 3

    Land, water and mineral resources in science education

    Publicat 1987
    Llibre

    Land, water and mineral resources in science education

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