Cita APA (7a ed.)

Drucker, P. F. (1993). Managing in turbulent times. Butterworth-Heinemann.

Cita Chicago Style (17a ed.)

Drucker, Peter F. Managing in Turbulent Times. Oxford: Butterworth-Heinemann, 1993.

Cita MLA (9a ed.)

Drucker, Peter F. Managing in Turbulent Times. Butterworth-Heinemann, 1993.