Swartz, W. H., Willems, J. J., & Lim, K. B. (1982). Obstetrics and gynecology: Pretest self-assessment and review (2nd ed.). McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSwartz, William H., John J. Willems, और Kiat B. Lim. Obstetrics and Gynecology: Pretest Self-assessment and Review. 2nd ed. New York: McGraw-Hill, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSwartz, William H., et al. Obstetrics and Gynecology: Pretest Self-assessment and Review. 2nd ed. McGraw-Hill, 1982.
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