1. The latest and best in orthodontic mechanism;Angle;Dent. Cosmos,1928
2. The latest and best in orthodontic mechanism;Angle;Dent. Cosmos,1929
3. The latest and best in orthodontic mechanism;Angle;Dent. Cosmos,1929
4. The latest and best in orthodontic mechanism;Angle;Dent. Cosmos,1929
5. Edgewise orthodontics;Thurow,1966