Cita APA (7a ed.)

Drucker, P. F. (1995). Managing in a time of great change. Butterworth-Heinemann.

Cita Chicago Style (17a ed.)

Drucker, Peter Ferdinand. Managing in a Time of Great Change. Oxford: Butterworth-Heinemann, 1995.

Cita MLA (9a ed.)

Drucker, Peter Ferdinand. Managing in a Time of Great Change. Butterworth-Heinemann, 1995.