APA način citiranja (7. izdanje)

Drucker, P. F. (1999). Management challenges for the 21st century (First edition.). HarperBusiness.

Čikaški stil citiranja (17. izdanje)

Drucker, Peter F. Management Challenges for the 21st Century. First edition. New York: HarperBusiness, 1999.

MLA način citiranja (8. izdanje)

Drucker, Peter F. Management Challenges for the 21st Century. First edition. HarperBusiness, 1999.