1. Age and Sex Categories as Sociological Variables in the Mental Disorders of Later Maturity
2. Belknap, I. C., and E. G. Jaco, "TheEpidemiology of Mental Disorders in aPolitical-Type City," in Interrelations Be-tween the Social Environment and Psy-chiatric Disorders (New York: MilbankMemorial Fund, 1953), pp. 235-243.BelknapThe Epidemiology of Mental Disorders in a Political-Type City235Interrelations Between the Social Environment and Psychiatric Disorders1953
3. New Facts on Mental Disorders
4. NEUROSIS AND THE MEXICAN FAMILY STRUCTURE