1. Analysis—The interim;Ricketts;Angle Orthod.,1970
2. Rocky Mountain Data Processing, Inc., Los Angeles, Calif.
3. Controlling the magnitude, direction, and duration of extraoral force;Armstrong;Am. J. Orthod.,1971
4. Influence of extraoral traction;Poulton;Am. J. Orthod.,1967
5. Wylie Lecture;Isaacson,1970