Denhoff, Eric and Robinault, Isabel : Cerebral Palsy and Related Disorders. New York, McGraw-Hill, 1960.
2.
Deutsch, Martin P.: The disadvantaged child and the learning process, in Passow, A. Harry (Ed.), Education in Depressed Areas. New York, Teachers College Press, 1963.
3.
Hunt, J.McV.: Intelligence and Experience. New York, The Ronald Press Co., 1961.
4.
Inhelder, Barbel and Piaget, Jean: The Early Growth of Logic in the Child. New York , Harper and Row, 1964.
5.
Milner, Esther : A study of the relationship between reading readiness in grade one school children and patterns of parent-child interaction . Child Development22: 95, 1951.
6.
Richmond, Julius : For the child of poverty. American Child.48: No. 2, 5, Spring 1966.
7.
Vygotsky, L.S. : Thought and Language. Cambridge, Mass., M.I.T. Press, 1962, passim.
