Reissman, F. , The Culturally Deprived Child, pp. 7, 30. New York: Harper and Row, 1962.
2.
Ausubel, D. and P. Ausubel. "Ego Development Among Segregated Negro Children". A. Harry Passow (editor). EducationinDepressedAreas , p. 113. New York: Bureau of Publications, Teachers College, Columbia University, 1963.
3.
MacKinnon, D. "Conditions for Effective Personality Change ". Paper read at the Seventh Annual Association for Supervision and Curriculum Development meeting, Portland, Oregon, April 29, 1962.
4.
Goldberg, M. "Factors Affecting Educational Attainment in Depressed Urban Areas ". A. Harry Passow (editor). Education in Depressed Areas, pp. 79-80. New York: Bureau of Publications, Teachers College, Columbia University, 1963.
5.
Smith, R. "The Relationship of Creativity to Social Class". Cooperative Research Project 2250. Pittsburgh: University of Pittsburgh, 1965.
6.
Rogers, D. "A comparison of Selected Art Abilities of Elementary Students from Varying Socioeconomic Levels". Unpublished doctoral dissertation. Storrs: University of Connecticut, 1967.