Atchley, R. C. (1971). Retirement and leisure participation: Continuity or crisis?The Gerontologist, 11, 13-17.
2.
Atchley, R. C. (1989). A continuity theory of normal aging. The Gerontologist, 29, 183-190.
3.
Atchley, R. C. (1991). Social forces and aging (6th ed). Belmont, CA: Wadsworth.
4.
Fry, P. S. (1992). Major social theories of aging and their implications for counseling concepts and practice: A critical review. The Counseling Psychologist, 20, 246-329.
5.
George, L K. (1990). Social structure, social processes, and social-psychological states. In R. H. Binstock & L. K George (Eds.), Handbook of aging and the social sciences (3rd ed., pp. 186-204). New York: Academic Press.
6.
Havighurst, R. J. (1963). Successful aging. In R. H. Williams, C. Tibbitts, & W. Donohue (Eds.), Processes of aging (Vol. 1, pp. 299-320). New York: Atherton.
7.
Henry, W. E. (1963). The theory of intrinsic disengagement. In P. From Hansen (Ed.), Age with a future (pp. 415-418). Copenhagen: Munksgaard.
8.
Kaufman, S. R. (1987). The ageless self. Sources of meaning in late life. Madison: University of Wisconsin Press.
9.
Kuypers, J. A. , & Bengtson, V. L. (1973). Social breakdown and competence: A model of normal aging. Human Development, 16, 181-201.
10.
Lawton, M. P. (1983). Environment and other determinants of well-being. The Gerontologist, 23, 349-357.
11.
Lawton, M. P. (1991). Functional status and aging well. Generations, 15(1), 31-34.
12.
Maddox, G. L. (1968). Persistence of lifestyle among the elderly: A longitudinal study of patterns of social activity in relation to life satisfaction. In B. L. Neugarten (Ed.), Middle age and aging (pp. 181-183). Chicago: University of Chicago Press.
13.
Neugarten, B. L. (1964). Personality in middle and late life. New York: Atherton.
14.
Neugarten, B. L. , Havighurst, R. J., & Tobin, S. S. (1961). The measurement of life satisfaction. Journal of Gerontology, 16, 134-143.
15.
Okun, M. A. (1987). Life satisfaction. In G. L Maddox (Ed.), Encyclopedia of aging (pp. 399-401). New York: Springer.
16.
Rosow, I. (1963). Adjustment of the normal aged. In R. H. Williams, C. Tibbitts, & W. Donohue (Eds.), Processes of aging: Social and psychological perspectives (Vol. 2, pp. 195-223). New York: Atherton.
17.
Sill, J. S. (1980). Disengagement reconsidered: Awareness of finitude. Journal of Gerontology, 20, 457-462.