(2015). The one thing by Gary Keller: The surprisingly simple truth behind extraordinary results = Joosr guide to the One thing by Gary Keller. Joosr.
Chicago-Zitierstil (17. Ausg.)The One Thing by Gary Keller: The Surprisingly Simple Truth Behind Extraordinary Results = Joosr Guide to the One Thing by Gary Keller. Clitheroe: Joosr, 2015.
MLA-Zitierstil (9. Ausg.)The One Thing by Gary Keller: The Surprisingly Simple Truth Behind Extraordinary Results = Joosr Guide to the One Thing by Gary Keller. Joosr, 2015.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.