Não informado. (2009). Current Opinion in Otolaryngology & Head and Neck Surgery. Lippincott Williams & Wilkins.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Current Opinion in Otolaryngology & Head and Neck Surgery. Philadelphia, Pa: Lippincott Williams & Wilkins, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Current Opinion in Otolaryngology & Head and Neck Surgery. Lippincott Williams & Wilkins, 2009.
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