Duncan, A. F., & Bobo, K. A. (2022). Opal Lee and what it means to be free: The true story of the grandmother of Juneteenth. Tommy Nelson, an imprint of Thomas Nelson.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Duncan, Alice Faye, و Keturah A. Bobo. Opal Lee and What It Means to Be Free: The True Story of the Grandmother of Juneteenth. Nashville, Tennessee: Tommy Nelson, an imprint of Thomas Nelson, 2022.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Duncan, Alice Faye, و Keturah A. Bobo. Opal Lee and What It Means to Be Free: The True Story of the Grandmother of Juneteenth. Tommy Nelson, an imprint of Thomas Nelson, 2022.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.