Descriptor
| Blindness | 1 |
| Concept Formation | 1 |
| Exceptional Child Research | 1 |
| Perceptual Development | 1 |
| Sensory Integration | 1 |
| Tactual Perception | 1 |
| Visual Impairments | 1 |
Source
| Except Children | 1 |
Author
| Hanninen, Kenneth A. | 1 |
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Hanninen, Kenneth A. – Except Children, 1970
Descriptors: Blindness, Concept Formation, Exceptional Child Research, Perceptual Development
