Gaya APA

Zilko, D. (2016). Irrational Persistence : seven secret that turned a bankrupt start up into 231.000.000 business (-). New Jersey: Wiley.

Gaya MLA

Zilko, Dave. "Irrational Persistence : seven secret that turned a bankrupt start up into 231.000.000 business". - New Jersey: Wiley, 2016. Text.