Descriptor
| Exceptional Child Research | 1 |
| Mental Retardation | 1 |
| Mild Mental Retardation | 1 |
| Neurological Impairments | 1 |
| Perception Tests | 1 |
| Perceptual Motor Learning | 1 |
| Visual Perception | 1 |
Source
| Amer J Ment Deficiency | 1 |
Author
| Alley, Gordon R. | 1 |
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Alley, Gordon R. – Amer J Ment Deficiency, 1969
Descriptors: Exceptional Child Research, Mental Retardation, Mild Mental Retardation, Neurological Impairments
