Não informado. (2003). Bulletin of the Royal College of Surgeons of England. Royal College of Surgeons of England.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the Royal College of Surgeons of England. London: Royal College of Surgeons of England, 2003.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the Royal College of Surgeons of England. Royal College of Surgeons of England, 2003.
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