Rostad, K. A., Wiley, & Sarkissian, J. (2013). The man in the arena: Vanguard founder John C. Bogle and his lifelong battle to serve investors first. Wiley.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Rostad, Knut A., Wiley, و Johnson Sarkissian. The Man in the Arena: Vanguard Founder John C. Bogle and His Lifelong Battle to Serve Investors First. Hoboken, New Jersey: Wiley, 2013.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Rostad, Knut A., et al. The Man in the Arena: Vanguard Founder John C. Bogle and His Lifelong Battle to Serve Investors First. Wiley, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.