1. Clayson, D. B., “Chemical Carcinogenesis”, Churchill, London (1962).
2. Greenstein, J. P., “Biochemistry of Cancer”, 2nd ed., Academic Press, New York (1954).
3. Greenstein, J. P. and Haddow, A. (editors), “Advances in Cancer Research”, Vols. 1–7, Academic Press, New York (1953–1963).
4. Causation of Cancer, Brit. med. Bull.
14, No. 2 (1958).
5. Hartwell, J. L. L., “Survey of Compounds which have been tested for Carcinogenic Activity ”, 2nd ed., Public Health Service Publications, No. 149, Washington (1951).