1. Practice of orthodontics;Salzmann,1966
2. The six keys to normal occlusion;Andrews;Am. J. Orthod.,1972
3. The straight-wire appliance: Origin, controversy, commentary;Andrews;J. Clin. Orthod.,1976
4. Occlusion;Ramfjord,1966
5. Evaluation, diagnosis, and treatment of occlusal problems;Dawson,1974