- Nordenfelt, L.
- Quality of Life and Happiness.
- Björk, S.; Vang, J. ;Eds.: "Assessing Quality of Life", Health Service Studies nr 1, Samhall Klintland, 1989, Sweden, 17 - 26
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no new data on present happiness.