APA-viite (7. p.)
Keller, G. (2013). The One Thing: The Surprisingly Simple Truth Behind Extraordinary Results. Bard Press.
Chicago-viite (17. p.)
Keller, Gary. The One Thing: The Surprisingly Simple Truth Behind Extraordinary Results. London: Bard Press, 2013.
MLA-viite (9. p.)
Keller, Gary. The One Thing: The Surprisingly Simple Truth Behind Extraordinary Results. Bard Press, 2013.
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