1. Cancer Statistics;American Cancer Society,1969
2. Clinical Staging System for Carcinoma of the Oral Cavity;American Joint Committee for Cancer Staging and End Results Reporting,1967
3. The Dilemma of Cancer Statistics;Batley;Arch. Surg.,1964
4. Oral Cancer in England and Wales. A national Study of Morbidity, Mortality, Curability and Related Factors;Binnie,1972
5. Epidermoid Carcinoma of the Gum: A 20 year survey;Cady;Cancer,1969