Peters, S. T., & Washington, S. (2019). Groundbreaking guys: 40 men who became great by doing good (First edition.). Little, Brown and Company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Peters, Stephanie True, و Shamel Washington. Groundbreaking Guys: 40 Men Who Became Great by Doing Good. First edition. New York: Little, Brown and Company, 2019.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Peters, Stephanie True, و Shamel Washington. Groundbreaking Guys: 40 Men Who Became Great by Doing Good. First edition. Little, Brown and Company, 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.