Cita APA (7th ed.)
Drucker, P. F. The practice of management. Harper & Row.
Cita Chicago (17th ed.)
Drucker, Peter F. The Practice of Management. New York: Harper & Row.
Cita MLA (9th ed.)
Drucker, Peter F. The Practice of Management. Harper & Row.
Atenció: Aquestes cites poden no estar 100% correctes.