1. Allport, G. W.Personality. A psychological interpretation. New York: Holt, 1937.
2. Allport, G. W.Pattern and growth in personality. New York: Holt, Rinehart, and Winston, 1961.
3. Allport, G. W. The historical background of modern social psychology. In G. Lindzey & E. Aronson (Eds.),Handbook of social psychology (2nd ed.,) 1968, (Vol. 1, pp. 1?80). Reading, Mass: Adison-Wesley Publishing Co.
4. Argyle, M.The psychology of interpersonal behavior (2nd ed.). New York: Pelican, 1972.
5. Baldwin, J. M.Mental development in the child and in the race. New York: Macmillan, 1895.