| Iaith wreiddiol | Saesneg |
|---|---|
| Tudalennau (o-i) | 202-208 |
| Cyfnodolyn | Education and Training in Mental Retardation and Developmental Disabilities |
| Cyfrol | 37 |
| Rhif cyhoeddi | 2 |
| Statws | Cyhoeddwyd - 1 Meh 2002 |
Dyfynnu hyn
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