Letts, E. (2020). The perfect horse: The daring rescue of horses kidnapped during World War II (First Yearling edition.). Yearling.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Letts, Elizabeth. The Perfect Horse: The Daring Rescue of Horses Kidnapped During World War II. First Yearling edition. New York: Yearling, 2020.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Letts, Elizabeth. The Perfect Horse: The Daring Rescue of Horses Kidnapped During World War II. First Yearling edition. Yearling, 2020.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.