APA (7 वां संस्करण) प्रशस्ति पत्र
Nestel, S. (2006). Obstructed labour: Race and gender in the re-emergence of midwifery. UBC Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Nestel, Sheryl. Obstructed Labour: Race and Gender in the Re-emergence of Midwifery. Vancouver: UBC Press, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Nestel, Sheryl. Obstructed Labour: Race and Gender in the Re-emergence of Midwifery. UBC Press, 2006.
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