1. Houston Test of Language Development;Crabtree,1963
2. Measuring tactile form discrimination in visually limited individuals;Crandell;International Journal for the Blind,1968
3. The Slosson Intelligence Test: A screening and retesting technique for slow learners;DeLapa;Journal of School Psychology,1968
4. Grey, O. School Psychologist, Owensboro Public Schools, 620 Walnut Street, Owensboro, Kentucky. Personal communication, 1968.
5. Fundamental statistics in psychology and education;Guilford,1956