Não informado. (2003). Bulletin of the Royal College of Surgeons of England. Royal College of Surgeons of England.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Bulletin of the Royal College of Surgeons of England. London: Royal College of Surgeons of England, 2003.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Bulletin of the Royal College of Surgeons of England. Royal College of Surgeons of England, 2003.
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