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Post-Capitalist Society: Drucker, Peter F.: 9780887306617: Amazon.com: Books
Management Rev Ed: Drucker, Peter F.: 9780061252662: Amazon.com: Books
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Amazon.com: The Essential Drucker: The Best of Sixty Years of Peter Drucker's Essential Writings on Management (Collins Business Essentials) eBook : Drucker, Peter F.: Kindle Store
Amazon.com: The Essential Drucker: The Best of Sixty Years of Peter Drucker's Essential Writings on Management (Collins Business Essentials): 9780061345012: Drucker, Peter F.: Books