Oster, E., & Vacker, K. (2019). Cribsheet: A data-driven guide to better, more relaxed parenting, from birth to preschool (Unabridged.). Penguin Audio.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Oster, Emily, و Karissa Vacker. Cribsheet: A Data-driven Guide to Better, More Relaxed Parenting, from Birth to Preschool. Unabridged. New York: Penguin Audio, 2019.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Oster, Emily, و Karissa Vacker. Cribsheet: A Data-driven Guide to Better, More Relaxed Parenting, from Birth to Preschool. Unabridged. Penguin Audio, 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.