Gaya APA

Lutz, R, A. (2003). Guts: 8 Laws Of Business From One Of The Most Innovative Business Leaders Of Our Time . New Jersey: John Wiley and Sons.

Gaya MLA

Lutz, Robert, A.. "Guts: 8 Laws Of Business From One Of The Most Innovative Business Leaders Of Our Time". New Jersey: John Wiley and Sons, 2003. Text.