Richard H. Wills, The Institutionalized Severely Retarded (Charles C. Thomas, Springfield, 111., 1973).
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Обзор поведенческой генетики человека см. G. Е. McClearn and J. С. DeFries, Introduction to Behavioral Genetics (W. H. Freeman, San Francisco, 1973); Lee Ehrman and P. A. Parsons, The Genetics of Behavior (Sinauer Associates, Sunderland, Mass., 1976).
