Posner, M. J. (1982). Executive essentials: The one guide to what every rising business person should know. Avon Books.
Citace podle Chicago (17th ed.)Posner, Mitchell J. Executive Essentials: The One Guide to What Every Rising Business Person Should Know. New York: Avon Books, 1982.
Citace podle MLA (9th ed.)Posner, Mitchell J. Executive Essentials: The One Guide to What Every Rising Business Person Should Know. Avon Books, 1982.
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