1. Consistency and variability in the growth of intelligence from birth to eighteen years;Bayley;J. genet. Psychol.,1949
2. Board of Education of the City of New York. Demonstration Guidance Project-Junior High School 43, Manhattan and George Washington High School 1960-61
3. Board of Education of the City of New York. The Higher Horizons Program 1959-60
4. Replications of some aspects of the Higher Horizons Program in a southern junior high school;Brazziel;J. Negro Educ.,1963