Style de citation APA (7e éd.)

Drucker, P. (2006). Management challenges for the 21st Century. Palgrave Macmillan Punl.

Style de citation Chicago (17e éd.)

Drucker, Peter. Management Challenges for the 21st Century. New York: Palgrave Macmillan Punl, 2006.

Style de citation MLA (9e éd.)

Drucker, Peter. Management Challenges for the 21st Century. Palgrave Macmillan Punl, 2006.