Sanders, R. C. (1985). The Principles and Practice of Ultrasonography in Obstetrics and Gynecology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSanders, Roger C. The Principles and Practice of Ultrasonography in Obstetrics and Gynecology. 1985.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSanders, Roger C. The Principles and Practice of Ultrasonography in Obstetrics and Gynecology. 1985.
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