Hellquist, H. B. (1990). Pathology of the nose and paranasal sinuses. Butterworths.
Chicago Style (17th ed.) CitationHellquist, Henrik B. Pathology of the Nose and Paranasal Sinuses. London ; Boston: Butterworths, 1990.
MLA (9th ed.) CitationHellquist, Henrik B. Pathology of the Nose and Paranasal Sinuses. Butterworths, 1990.
Warning: These citations may not always be 100% accurate.