1. Gosling, J.C.B.: 1969, Pleasure and Desire, Clarendon Press, Oxford.
2. Kenny, A.: 1963, Action, Emotion and Will, Oxford University Press, Oxford.
3. McGill, V.J.: 1967, The Idea of Happiness, Fredrick A. Praeger Publishers, New York.
4. Naess, S.: 1979, Livskvalitet: Om å ha det godt i byen og på landet, Institute of Applied Social Research, Oslo.
5. Naess, S.: 1987, Quality of Life Research: Concepts, Methods and Applications, Institute of Applied Social Research, Oslo.