APA (7 वां संस्करण) प्रशस्ति पत्र
Burtch, B. E. (1994). Trials of labour: The re-emergence of midwifery. McGill-Queen's University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Burtch, Brian E. Trials of Labour: The Re-emergence of Midwifery. Montreal ; Buffalo, N.Y.: McGill-Queen's University Press, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Burtch, Brian E. Trials of Labour: The Re-emergence of Midwifery. McGill-Queen's University Press, 1994.
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