APA (7th ed.) Citation

Jorge, J., Fernandes, P. R., Queirós, A., Almeida, J. B., & Parafita, M. A. (2004). The prevalence of refractive errors in university students in Portugal.

Chicago Style (17th ed.) Citation

Jorge, Jorge, Paulo Rodrigues Fernandes, A. Queirós, José B. Almeida, and Manuel A. Parafita. The Prevalence of Refractive Errors in University Students in Portugal. 2004.

MLA (8th ed.) Citation

Jorge, Jorge, et al. The Prevalence of Refractive Errors in University Students in Portugal. 2004.