1. Agin, D. (2007). Editorial correspondence. New York Review of Books (p. 82).
2. Diagnostic and statistical manual of mental disorders;American Psychiatric Association,2000
3. Childhood experience, interpersonal development, and reproductive strategies: An evolutionary theory of socialization;Belsky;Child Development,1991
4. Sources of human psychological differences: The Minnesota Study of Twins Reared Apart;Bouchard;Science,1990
5. Civil No. 88-764 HL (1947). United States District Court for the District of Puerto Rico.