Oster, E. (2013). Expecting better: Why the conventional pregnancy wisdom is wrong--and what you really need to know (2025.).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Oster, Emily. Expecting Better: Why the Conventional Pregnancy Wisdom Is Wrong--and What You Really Need to Know. 2025. 2013.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Oster, Emily. Expecting Better: Why the Conventional Pregnancy Wisdom Is Wrong--and What You Really Need to Know. 2025. 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.