توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Tichy, N. M., & Cardwell, N. (2002). The cycle of leadership: How great leaders teach their companies to win. HarperBusiness.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Tichy, Noel M., و Nancy Cardwell. The Cycle of Leadership: How Great Leaders Teach Their Companies to Win. New York, NY: HarperBusiness, 2002.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Tichy, Noel M., و Nancy Cardwell. The Cycle of Leadership: How Great Leaders Teach Their Companies to Win. HarperBusiness, 2002.