- Pressey, S.L.; Kuhlen, R.G.
- Satisfaction in Life Activities: General Interest and Recreation.
- Pressey, S.L.;Kuhlen, R.I.: "Psychological Development Through the Life Span", Harper, 1957, New York, USA, Chapter 9
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no new data on present happiness.