LIBROS DEL AUTOR: irving ross allen

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  • Personal Efficiency, Applied Salesmanship, And Sales Administration (1915)
    Irving Ross Allen
    Personal Efficiency, Applied Salesmanship, and Sales Administration is a book written by Irving Ross Allen and published in 1915. The book is a comprehensive guide to salesmanship and sales administration, and it aims to provide practical advice on how to improve personal efficiency and increase sales.The first section of the book focuses on personal efficiency and provides tip...
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    36,48 €