Ralph M. Crystal is an American psychologist, professor and author, currently the Wallace Charles Hill Professor of Rehabilitation Education at University of Kentucky,[1][2] and his books have been collected by libraries worldwide.[3]
References
edit- ^ "Endowed Chairs". uky.edu. Archived from the original on October 14, 2016. Retrieved September 30, 2016.
- ^ "RCrystal" (PDF). uky.edu. Retrieved September 30, 2016.
- ^ "Crystal Ralph M." worldcat.org. Retrieved September 30, 2016.