Deismireacht APA

Drucker., P. F. (1999). Management challenges for the 21st century. New York: HarperBusiness.

Trích dẫn kiểu Chicago

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

Deismireacht MLA

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

Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.