APA
Khurana A. K., Ophthalmic, . (2019). Theory and practice of optics and refraction 4th ed. Elsevier: Haryana.
Chicago
Khurana A K, Ophthalmic, . 2019. Theory and practice of optics and refraction 4th ed. Elsevier: Haryana.
Harvard
Khurana A. K., Ophthalmic, . (2019). Theory and practice of optics and refraction 4th ed. Elsevier: Haryana.
MLA
Khurana A K, Ophthalmic, . Theory and practice of optics and refraction 4th ed. Elsevier: Haryana. 2019.