Oster, E., & Vacker, K. (2019). Cribsheet: A data-driven guide to better, more relaxed parenting, from birth to preschool (Unabridged.). Penguin Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOster, Emily, और Karissa Vacker. Cribsheet: A Data-driven Guide to Better, More Relaxed Parenting, from Birth to Preschool. Unabridged. New York: Penguin Audio, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOster, Emily, और Karissa Vacker. Cribsheet: A Data-driven Guide to Better, More Relaxed Parenting, from Birth to Preschool. Unabridged. Penguin Audio, 2019.
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