APA (7 वां संस्करण) प्रशस्ति पत्र
Perkins, B. B. (2004). The medical delivery business: Health reform, childbirth, and the economic order. Rutgers University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Perkins, Barbara Bridgman. The Medical Delivery Business: Health Reform, Childbirth, and the Economic Order. New Brunswick, N.J.: Rutgers University Press, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Perkins, Barbara Bridgman. The Medical Delivery Business: Health Reform, Childbirth, and the Economic Order. Rutgers University Press, 2004.
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