Chu, Stephen J. 
Fundamentals of color :  shade matching and communication in esthetic dentistry /  Stephen J. Chu, DMD, MSD, CDT, MDT, Alessandro Devigus, Dr med dent, Rade D. Paravina, DDS, MS, PhD, Adam J. Mieleszko, CDT.   - Second edition.   - Hanover Park, IL :  Quintessence Publishing Co Inc,  2010.   - ix, 157 pages :  illustrations (some color) ;  25 cm.