Gaya APA

Calloway, J. (2007). Work like you're showing off!: the joy, jazz, and kick of being better tomorrow than you were today (1). New Jersey: John Wiley & Sons.

Gaya MLA

Calloway, Joe. "Work like you're showing off!: the joy, jazz, and kick of being better tomorrow than you were today". 1 New Jersey: John Wiley & Sons, 2007. Text.