The beginnings of vocal communication in infants and autistic children : an experimental investigation into spontaneous and imitated vocalisation in preverbal infants and non-verbal autistic children matched with subnormal controls
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| OCLC: | 123439824 |
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| Language: | English |
| Published: |
University of London,
England : 1971.
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| Format: | Thesis Monograph Microform Note that CRL will digitize material from the collection when copyright allows. |