APA (7th ed.) Citation

Kollbaum, P. S., Jansen, M. E., Kollbaum, E. J., & Bullimore, M. A. (2014). Validation of an iPad test of letter contrast sensitivity. Optometry and vision science, 91(3), 291. https://doi.org/10.1097/OPX.0000000000000158

Chicago Style (17th ed.) Citation

Kollbaum, Pete S., Meredith E. Jansen, Elli J. Kollbaum, and Mark A. Bullimore. "Validation of an IPad Test of Letter Contrast Sensitivity." Optometry and Vision Science 91, no. 3 (2014): 291. https://doi.org/10.1097/OPX.0000000000000158.

MLA (9th ed.) Citation

Kollbaum, Pete S., et al. "Validation of an IPad Test of Letter Contrast Sensitivity." Optometry and Vision Science, vol. 91, no. 3, 2014, p. 291, https://doi.org/10.1097/OPX.0000000000000158.