Seelye, Elwyn E.
Field practice
New York: John Wiley & Sons, 1954
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Drucker, Peter Ferdinand, 1909-2005
The practice of management
Harper & Row, 1945
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Drucher, Peter F
practice-of management.
New York: H. Harper & Row, 1954
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Redman
The Practice Of Patient......
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Beat Practice
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