Gaya APA

Zilko, D. (2016). Irrational Persistence: Seven Secrets That Turned a Bankrupt Startup Into a $231,000,000 Business . New Jersey: John Wiley & Sons, Inc..

Gaya MLA

Zilko, Dave. "Irrational Persistence: Seven Secrets That Turned a Bankrupt Startup Into a $231,000,000 Business". New Jersey: John Wiley & Sons, Inc., 2016. TEXT.