1. The socioeconomic distribution of cancer of various sites in Buffalo, N.Y., 1948–1952
2. New York State Department of Health, Annual Report, Office of Biostatistics, 1958, p. 35, Table 15.
3. New York State Department of Mental Hygiene, Annual Report, 1958, p. 70, 71, Table 32.
4. Cancer; p. 104, Table 66.