1. Malocclusion of the Teeth;Angle,1907
2. Dewey, Martin: Practical Orthodontia, St. Louis, The C. V. Mosby Co.
3. Practical Orthodontia;Martin,1935
4. A Study of Some Etiological Factors of Malocclusion;Hellman;Dental Cosmos,1920
5. The Process of Dentition and Its Effect on Occlusion;Hellman;Dental Cosmos,1923