Descriptor
| Definitions | 1 |
| Environmental Influences | 1 |
| Etiology | 1 |
| Exceptional Child Services | 1 |
| Guidelines | 1 |
| Mental Retardation | 1 |
| Perinatal Influences | 1 |
| Poisoning | 1 |
| Pregnancy | 1 |
| Prenatal Influences | 1 |
| Vocational Rehabilitation | 1 |
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| Phelps, William R. | 1 |
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| Guides - General | 1 |
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Phelps, William R. – 1974
Presented for vocational counselors is an overview of mental retardation, including the definition, and etiology. Described are the prenatal factors of heredity (including familial retardation and cranial anomalies), infections (including syphilis and encephalitis), radiation, blood group incompatibility, and unknown or variable etiological…
Descriptors: Definitions, Environmental Influences, Etiology, Exceptional Child Services
