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  1. 1

    Failure in school an international study af Wall, William Douglas

    Udgivet 1962
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    Failure in school an international study
  2. 2

    Education of the slow-learning child. af Ingram, Christine Porter

    Udgivet 1953
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    Education of the slow-learning child.
  3. 3

    A textbook of mental deficiency af Tredgold, Alfred Frank

    Udgivet 1952
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    A textbook of mental deficiency
  4. 4

    The psychology of special abilities and disabilities af Bronner, Augusta Fox 1881-

    Udgivet 1917
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    The psychology of special abilities and disabilities

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