1. Behavior modification: Principles and Clinical Applications;Agras,1972
2. The psychiatric nurse as a behavioral engineer;Ayllon;J. exp. Anal. Behav.,1959
3. Health care from a behavioral-ecological viewpoint;Baltes,1974
4. Growing Old;Cumming,1961
5. Recreation participation patterns of successful aging;De Carlo;J. Gerontol.,1974