Citazione APA

 Rostad, K. A. (2013).  The man in the arena: Vanguard founder john c. bogle and his lifelong battle to serve investors first.  John Wiley and Sons.

Stile di citazione Chicago

 Rostad, Knut A.  The Man in the Arena: Vanguard Founder John C. Bogle and His Lifelong Battle to Serve Investors First.  John Wiley and Sons, 2013.

Citazione MLA

 Rostad, Knut A.  The Man in the Arena: Vanguard Founder John C. Bogle and His Lifelong Battle to Serve Investors First.  John Wiley and Sons, 2013.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.