A longitudinal study of corneal astigmatism and total astigmatism.

MLA

Baldwin, W. R., and D. Mills. “A Longitudinal Study of Corneal Astigmatism and Total Astigmatism.” American Journal of Optometry and Physiological Optics, vol. 58, no. 3, Mar. 1981, pp. 206–11. EBSCOhost, https://doi.org/10.1097/00006324-198103000-00004.

APA

Baldwin, W. R., & Mills, D. (1981). A longitudinal study of corneal astigmatism and total astigmatism. American Journal of Optometry and Physiological Optics, 58(3), 206–211. https://doi.org/10.1097/00006324-198103000-00004

Chicago

Baldwin, W R, and D Mills. 1981. “A Longitudinal Study of Corneal Astigmatism and Total Astigmatism.” American Journal of Optometry and Physiological Optics 58 (3): 206–11. doi:10.1097/00006324-198103000-00004.