Drucker, P. F. (1999). Managing for result. Butterworth-Heinemann.
Cita Chicago (17th ed.)Drucker, Peter F. Managing for Result. Oxford: Butterworth-Heinemann, 1999.
Cita MLA (8th ed.)Drucker, Peter F. Managing for Result. Butterworth-Heinemann, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.