Não informado. (2008). B-ENT. Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery.
Chicago (17e ed.) BronvermeldingNão informado. B-ENT. Leuven, Belgica: Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, 2008.
MLA (8e ed.) BronvermeldingNão informado. B-ENT. Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, 2008.
Let op: Deze citaties zijn niet altijd 100% accuraat.