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  1. 1

    Developing management ability 600=six hundred questions and answers per Planty, Earl Gerald

    Publicat 1954
    Llibre

    Developing management ability 600=six hundred questions and answers
  2. 2

    Training employees and managers for production and teamwork per Planty, Earl Gerald

    Publicat 1948
    Llibre

    Training employees and managers for production and teamwork

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