Drucker, P. F. (1986). Managing for results: Economic tasks and risk-taking decisions (1st Perennial Library ed.). Perennial Library.
Citace podle Chicago (17th ed.)Drucker, Peter F. Managing for Results: Economic Tasks and Risk-taking Decisions. 1st Perennial Library ed. New York: Perennial Library, 1986.
Citace podle MLA (8th ed.)Drucker, Peter F. Managing for Results: Economic Tasks and Risk-taking Decisions. 1st Perennial Library ed. Perennial Library, 1986.
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