APA (7e ed.) Bronvermelding
Drucker, P. F., Hesselbein, F., & Economy, P. (2015). Peter Drucker's five most important questions: Enduring wisdom for young leaders. John Wiley & Sons.
Chicago (17e ed.) Bronvermelding
Drucker, Peter F., Frances Hesselbein, en Peter Economy. Peter Drucker's Five Most Important Questions: Enduring Wisdom for Young Leaders. Hoboken, New Jersey: John Wiley & Sons, 2015.
MLA (9e ed.) Bronvermelding
Drucker, Peter F., et al. Peter Drucker's Five Most Important Questions: Enduring Wisdom for Young Leaders. John Wiley & Sons, 2015.
Let op: Deze citaties zijn niet altijd 100% accuraat.