Dangos 1 - 1 canlyniadau o 1 ar gyfer chwilio 'Berthold, Charles Aubert 1904-', amser ymholiad: 0.01e Mireinio'r Canlyniadau
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    Administrative concern for individual differences a study of the adaptability of public secondary schools in northeastern New Jersey to provide for individual differences, as expre... gan Berthold, Charles Aubert 1904-

    Cyhoeddwyd 1951
    Llyfr

    Administrative concern for individual differences a study of the adaptability of public secondary schools in northeastern New Jersey to provide for individual differences, as expressed by the relationship between the attitudes and policies professed by representative secondary school principals and the practices they report

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