Não informado. (2003). Bulletin of the Royal College of Surgeons of England. Royal College of Surgeons of England.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of the Royal College of Surgeons of England. London: Royal College of Surgeons of England, 2003.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of the Royal College of Surgeons of England. Royal College of Surgeons of England, 2003.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.