A picture's worth PECS and other visual communication strategies in autism
| Prif Awdur: | |
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| Awduron Eraill: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Bethesda, Md.
Woodbine House
2002.
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| Cyfres: | Topics in autism
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| Pynciau: |