Ekman, P. & Friesen, W. V. 1975. Unmasking the Face: A Guide to Recognizing Emotions from Facial Clues. Upper Saddle River, N.J.: Prentice Hall.

Lazarus, R. 1991. Emotion and Adaptation. New York: Oxford.

Это высказывание принадлежит Магде Арнольд. Arnold, М. (ed.). 1970. Feelings and Emotions. New York: Academic Press. См. гл. 12.

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