Simkin, P., & Cheyney, M. (2025). The birth partner: A complete guide to childbirth for dads, partners, doulas, and other labor companions (Sixth revised edition.). Harvard Common Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Simkin, Penny, و Melissa Cheyney. The Birth Partner: A Complete Guide to Childbirth for Dads, Partners, Doulas, and Other Labor Companions. Sixth revised edition. Beverly, MA, USA: Harvard Common Press, 2025.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Simkin, Penny, و Melissa Cheyney. The Birth Partner: A Complete Guide to Childbirth for Dads, Partners, Doulas, and Other Labor Companions. Sixth revised edition. Harvard Common Press, 2025.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.