1. Bakan, P. (ed.) (1966).Attention. Van Nostrand, New York
2. Blos, P. (1962).On Adolescence. Collier-Macmillan, London.
3. Brim, O. G., Jr. (1968). Adult socialization. In Clausen, J. A. (ed.),Socialization and Society. Little, Brown, Boston, pp. 270–320.
4. Bronfenbrenner, U. (1970).Two Worlds of Childhood. Basic Books, New York.
5. Cleckey, H. (1955),The Mask of Sanity. Mosby, St. Louis.