1. Cambell, C: Audio Synopsis Tapes, Vol. IV, No. 3, July, 1971.
2. Surgical problems associated with congenital malformations of the fore-foot;Cowan;Canadian J. Surg.,1965
3. Acquired nontraumatic deformities of the foot;Du Vries,1973
4. Acquired nontraumatic deformities of the foot;Du Vries,1973
5. Textbook of Pediatrics;Nelson,1969