APA (7th ed.) Citation

Drucker, F. P. (2001). Management Challenges for The 21st Century. HarperCollins Publisher Inc.

Chicago Style (17th ed.) Citation

Drucker, F. Peter. Management Challenges for The 21st Century. New York: HarperCollins Publisher Inc, 2001.

MLA (9th ed.) Citation

Drucker, F. Peter. Management Challenges for The 21st Century. HarperCollins Publisher Inc, 2001.

Warning: These citations may not always be 100% accurate.