1. Some Biologic Aspects: Their Implications and Application in Orthodontic Practice;Hellman;Int. J. Orthodontia,1937
2. Bolton Standards and Technique in Orthodontic Practice;Broadbent;Angle Orthodontist,1937
3. Facial Patterns—A Theme on Variation;Brodie;Angle Orthodontist,1946
4. Downs, W. B., and Moore, A. W.: Unpublished investigations.
5. Variations in Facial Relationships: Their Significance in Treatment and Prognosis;Downs;Am. J. Orthodontics,1948