(2012). WORLD clinics obstetrics and gynecology: Preterm labor. Jaypee Brothers Medical Publishers Inc.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWORLD Clinics Obstetrics and Gynecology: Preterm Labor. Jaypee Brothers Medical Publishers Inc, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWORLD Clinics Obstetrics and Gynecology: Preterm Labor. Jaypee Brothers Medical Publishers Inc, 2012.
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