P.Raymond Begg (4 1954). “Stone age man's dentition: With reference to anatomically correct occlusion, the etiology of malocclusion, and a technique for its treatment”. American Journal of Orthodontics40 (4): 298-312. ISSN0002-9416. PII:0002-9416(54)90092-5.
P.Raymond Begg (5 1954). “Stone Age man's dentition: With reference to anatomically correct occlusion, the etiology of malocclusion, and a technique for its treatment”. American Journal of Orthodontics40 (5): 373-383. ISSN0002-9416.
P.Raymond Begg (6 1954). “Stone age man's dentition: With reference to anatomically correct occlusion, the etiology of malocclusion, and a technique for its treatment”. American Journal of Orthodontics40 (6): 462-475. ISSN0002-9416.
P.Raymond Begg (7 1954). “Stone age man's dentition: With reference to anatomically correct occlusion, the etiology of malocclusion, and a technique for its treatment”. American Journal of Orthodontics40 (7): 517-531. ISSN0002-9416.