References
- Davson, Hugh: The Physiology of the Eye, Philadelphia, Blakiston, 1949.
- Duke-Elder, W. Stewart: Text-Book of Ophthalmology, St. Louis, C. V. Mosby, 1949, vol. IV.
- Hartridge, Hamilton: Recent Advances in the Physiology of Vision, Philadelphia, Blakiston, 1950.
- Linksz, Arthur: Physiology of the Eye: II. Vision, New York, Grune & Stratton, 1952.
- Luckiesh, Matthew: Light, Vision and Seeing, New York, D. Van Nostrand, 1944.
- Luckiesh, Matthew, and Moss, Frank K.: Reading As a Visual Task, New York, D. Van Nostrand, 1942.
- Sheard, Charles: Some factors affecting visual acuity, Am. J. Physiol. Optics, 2:168–184, 1921.
- Zoethout, William Douwes: Physiological Optics, ed. 4, Chicago, Professional Press, 1947.