(2005). Mental training for peak performance: Top athletes reveal the mind exercises they use to excel / Steven Ungerleider ; foreword by Nick Bollettieri.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Mental Training for Peak Performance: Top Athletes Reveal the Mind Exercises They Use to Excel / Steven Ungerleider ; Foreword by Nick Bollettieri. 2005.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Mental Training for Peak Performance: Top Athletes Reveal the Mind Exercises They Use to Excel / Steven Ungerleider ; Foreword by Nick Bollettieri. 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.