APA (7th ed.) Citation

Drucker. (2000). Managing in a Time of Great Change (Classic ed.). Butterworth-Heinemann.

Chicago Style (17th ed.) Citation

Drucker. Managing in a Time of Great Change. Classic ed. Oxford: Butterworth-Heinemann, 2000.

MLA (8th ed.) Citation

Drucker. Managing in a Time of Great Change. Classic ed. Butterworth-Heinemann, 2000.