Cunningham, f. g. (2005). williams obstetrics 22 nd edition. McGraw-Hill Book Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCunningham, f. gary. Williams Obstetrics 22 Nd Edition. McGraw-Hill Book Company, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCunningham, f. gary. Williams Obstetrics 22 Nd Edition. McGraw-Hill Book Company, 2005.
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