Bibliography on speech, hearing, and language in relation to mental retardation, 1900-1968.
| Autor principal: | |
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| Autor Corporativo: | |
| Formato: | Livro | 
| Idioma: | English | 
| Publicado em: | [Washington, D. C.
          Maternal and Child Health Service
    
        1969]. | 
| Colecção: | Public Health Service. PHS publication, no.2022 | 
| Assuntos: |