APA Edition Citation

Drucker, P. F. (2006). Management challenges for the 21st century. Butterworth,Elsevier.

Chicago Edition Citation

Drucker, Peter F. Management Challenges for the 21st Century. Oxford: Butterworth,Elsevier, 2006.

MLA Edition Citation

Drucker, Peter F. Management Challenges for the 21st Century. Butterworth,Elsevier, 2006.

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