APA (7th ed.) Citation

(2006). Twenty years of endoscopic sinus surgery: Its evolution and future directions. Annals Publ. Co.

Chicago Style (17th ed.) Citation

Twenty Years of Endoscopic Sinus Surgery: Its Evolution and Future Directions. St. Louis, Mo: Annals Publ. Co, 2006.

MLA (9th ed.) Citation

Twenty Years of Endoscopic Sinus Surgery: Its Evolution and Future Directions. Annals Publ. Co, 2006.