1. Patterns and implications of life-course organization;Abeles,1980
2. Old age in the new land: the American experience since 1790;Achenbaum,1978
3. Social forces and aging;Atchley,1994
4. Alternative age measures: a research agenda;Barak,1985
5. Sex-typed age norms among older Hispanics;Bastida;Gerontologist,1987