Refraction and how to refract :
including sections on optics, retinoscopy, the fitting of spectacles and eyeglasses, etc.
APA Citation
Thorington, J. (1900). Refraction and how to refract: including sections on optics, retinoscopy, the fitting of spectacles and eyeglasses, etc. 2d ed. Philadelphia: Blakiston.
MLA Citation
Thorington, James, 1858-. Refraction And How to Refract: Including Sections On Optics, Retinoscopy, the Fitting of Spectacles And Eyeglasses, Etc. 2d ed. Philadelphia: Blakiston, 1900.
Warning: These citations may not always be complete (especially for serials).