Gaya APA

Zilko, D. (2016). Irrational persistence: seven secrets that turned a bankrupt startup into a $231,000,000 business . New Jersey: Wiley.

Gaya MLA

Zilko, Dave. "Irrational persistence: seven secrets that turned a bankrupt startup into a $231,000,000 business". New Jersey: Wiley, 2016. Text.