CampbellA.ConverseP. E.RodgersW. L.The quality of American life: perceptions, evaluation, and satisfactions. New York: Russell Sage, 1976.
2.
HerzogA. R.RodgersW. L.WoodworthJ.Subjective well-being among different age groups. Ann Arbor: Institute for Social Research, Univer of Michigan, 1982.