Willis, J., & Stower, A. (2012). The wheels on the bus (1st ed. for the U.S., its dependencies, and the Philippines.). Barron's Educational Series.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Willis, Jeanne, و Adam Stower. The Wheels on the Bus. 1st ed. for the U.S., its dependencies, and the Philippines. Hauppauge, N.Y.: Barron's Educational Series, 2012.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Willis, Jeanne, و Adam Stower. The Wheels on the Bus. 1st ed. for the U.S., its dependencies, and the Philippines. Barron's Educational Series, 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.