APA (7th ed.) Citation

Evans, K. S. E., North, R. V., & Purslow, C. (2009). Tear ferning in contact lens wearers. Ophthalmic & Physiological Optics, 29(2), 199. https://doi.org/10.1111/j.1475-1313.2008.00626.x

Chicago Style (17th ed.) Citation

Evans, Katharine S. E., Rachel V. North, and Christine Purslow. "Tear Ferning in Contact Lens Wearers." Ophthalmic & Physiological Optics 29, no. 2 (2009): 199. https://doi.org/10.1111/j.1475-1313.2008.00626.x.

MLA (9th ed.) Citation

Evans, Katharine S. E., et al. "Tear Ferning in Contact Lens Wearers." Ophthalmic & Physiological Optics, vol. 29, no. 2, 2009, p. 199, https://doi.org/10.1111/j.1475-1313.2008.00626.x.