Condic. Human Embryos, Human Beings. The Catholic University of America Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCondic. Human Embryos, Human Beings. The Catholic University of America Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCondic. Human Embryos, Human Beings. The Catholic University of America Press.
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