Cohen, W. A., & Drucker, P. F. (2008). A class with Drucker: The lost lessons of the world's greatest management teacher. AMACOM/ American Management Association.
Citace podle Chicago (17th ed.)Cohen, William A., a Peter F. Drucker. A Class with Drucker: The Lost Lessons of the World's Greatest Management Teacher. New York: AMACOM/ American Management Association, 2008.
Citace podle MLA (9th ed.)Cohen, William A., a Peter F. Drucker. A Class with Drucker: The Lost Lessons of the World's Greatest Management Teacher. AMACOM/ American Management Association, 2008.
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