Drucker, Peter F. (Peter Ferdinand), 1909-2005, author
Harper Business, 2001
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Drucker, Peter F. (Peter Ferdinand), 1909-2005, author
Harvard Business Review Book, 2008
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Pearson, Barrie, author
Mercurry, 1991
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Rogers, David J., author
Charles Schribder's Sons, 1987
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McCormark, Mark H., author
Tian Xia Wen Hua, 1991
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