1. Ginzberg, R., and Brinegar, W. C.: Psychiatric and Medical Aspects of a County Home Survey in Iowa, J. Amer. Geriat. Soc. 1:283–286, 1953.
2. Ginzberg, R. and Brinegar, W. C.: Psychiatric Problcms in Elderly Residents of County Homes, Amer. J. Psychiat. 110:454–459, 1953.
3. Olsvary, V.: Psychological Aspects of a Survey of Elderly People in County Homes in Iowa, read at the 5th annual meeting of the Gerontological Society, Washington, D. C, September 5–7, 1952. Abstract in J. Geront., 7:489–490, 1952.
4. Cavan, R. S., Burgess, E. W., Havighurst, R. J. and Goldhamer, H.: Personal Adjustment in Old Age, Chicago, Science Research Associates, Inc., 1949, Appendix A, pp. 149–159.
5. Sheldon, J. H.: The Social Medicine of Old Age, London, Oxford University Press, 1948, Appendix 1, pp. 199–205.