Não informado. (2008). B-ENT. Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. B-ENT. Leuven, Belgica: Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. B-ENT. Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, 2008.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.