| Type |  Book |
| ชื่อเรื่อง | School achievement of children 6-11 years : as measured by the reading and arithmetic subtests of the wide range achievement tes |
| พิมพลักษณ์ | Rockville, Md. : National Center for Health Statistics, Public Health Service, Department of Health, Education, and Welfare, 1970 |
| รูปเล่ม | iv, 47 p. : ill |
| หัวเรื่อง | Intelligence levels --Testing [] |