1. Abnormal conditions of the teeth of animals in their relation to similar conditions in man;Colyer, F.,1931
2. Stone age man's dentition;Begg, PR;American Journal of Orthodontics,1954
3. Stone age man's dentition;Begg, PR;American Journal of Orthodontics,1954
4. Stone age man's dentition;Begg, PR;American Journal of Orthodontics,1954
5. The genetic and endocrine basis for differences in form and behaviour. Memoir No 19;Stockard, C.R.,1941