1. Blood groups of gastric ulcer and carcinoma;Beasley, W.H.;Brit. med. J,1960
2. Cancer in North Wales;Beasley, W.H.;Ibid,1963
3. Graham, S., Levin, M. L., Lilienfeld, A. M., and Sheehe, P. (1963).
4. Cancer and soils in the county of Anglesey. A revised method of comparison;Griffith, G.W.; Davies, R.I.;Brit. J. Cancer,1954
5. The geographical distribution of disease with special reference to cancer of the lung and stomach in Wales;Howe, G.M.;Brit. J. prev. soc. Med,1959