Wahl, G., Wolff, A., Mravic, M., & Gounder, C. (2024). World class: Purpose, passion, and the pursuit of greatness on and off the field (First edition.). Ballantine Books.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Wahl, Grant, Alexander Wolff, Mark Mravic, و Céline Gounder. World Class: Purpose, Passion, and the Pursuit of Greatness on and off the Field. First edition. New York, NY: Ballantine Books, 2024.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Wahl, Grant, et al. World Class: Purpose, Passion, and the Pursuit of Greatness on and off the Field. First edition. Ballantine Books, 2024.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.