APA (7th ed.) Citation

Unlu, H. H., Gunhan, K., Baser, E. F., & Songu, M. (2009). Long-term results in endoscopic dacryocystorhinostomy: Is intubation really required? Otolaryngology-head and neck surgery, 140(4), 589. https://doi.org/10.1016/j.otohns.2008.12.056

Chicago Style (17th ed.) Citation

Unlu, Halis H., Kivanc Gunhan, Esin F. Baser, and Murat Songu. "Long-term Results in Endoscopic Dacryocystorhinostomy: Is Intubation Really Required?" Otolaryngology-head and Neck Surgery 140, no. 4 (2009): 589. https://doi.org/10.1016/j.otohns.2008.12.056.

MLA (9th ed.) Citation

Unlu, Halis H., et al. "Long-term Results in Endoscopic Dacryocystorhinostomy: Is Intubation Really Required?" Otolaryngology-head and Neck Surgery, vol. 140, no. 4, 2009, p. 589, https://doi.org/10.1016/j.otohns.2008.12.056.