APA (7e ed.) Bronvermelding
Keller, G. (2013). The One Thing: The Surprisingly Simple Truth Behind Extraordinary Results. Bard Press.
Chicago (17e ed.) Bronvermelding
Keller, Gary. The One Thing: The Surprisingly Simple Truth Behind Extraordinary Results. London: Bard Press, 2013.
MLA (9e ed.) Bronvermelding
Keller, Gary. The One Thing: The Surprisingly Simple Truth Behind Extraordinary Results. Bard Press, 2013.
Let op: Deze citaties zijn niet altijd 100% accuraat.