- Howell, A.J.; Passmore, H.A.
- The Nature of Happiness: Nature Affiliation and Mental Well-Being
- C.L.M. Keyes (ed.), Mental Well-Being: International Contributions to the Study of Positive Mental Health, 2013, Springer, Dordrecht, Chapter 11
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no new data on present happiness.