Relin, D. O. (2013). Second suns: Two doctors and their amazing quest to restore sight and save lives. Random House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRelin, David Oliver. Second Suns: Two Doctors and Their Amazing Quest to Restore Sight and Save Lives. New York: Random House, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRelin, David Oliver. Second Suns: Two Doctors and Their Amazing Quest to Restore Sight and Save Lives. Random House, 2013.
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