1. Armstrong, D. M.: 1968, A Materialist Theory of the Mind (Humanities).
2. Arnold, M. B.: 1960, Emotion and Personality, vol. 2 (Columbia University Press); excerpted in Arnold, The Nature of Emotion, pp. 337?65.
3. Arnold, M. B. (ed.): 1968, The Nature of Emotion (Penguin).
4. Arnold, M. B.: 1970, ?Perrenial Problems in the Field of Emotion?; in Arnold, Feelings and Emotions, pp. 169?185.
5. Arnold, M. B. (ed.): 1970, Feelings and Emotions (Academic Press).