Calloway, J. (2007). Work like you're showing off!: The joy, jazz, and kick of being better tomorrow than you were today. John Wiley & Sons.
Citazione stile Chigago Style (17a edizione)Calloway, Joe. Work like You're Showing off!: The Joy, Jazz, and Kick of Being Better Tomorrow than You Were Today. Hoboken, N.J.: John Wiley & Sons, 2007.
Citatione MLA (8a ed.)Calloway, Joe. Work like You're Showing off!: The Joy, Jazz, and Kick of Being Better Tomorrow than You Were Today. John Wiley & Sons, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.