Communication skills for the primary class of educable mentally retarded a curriculum guide
| Autor principal: | |
|---|---|
| Format: | Llibre | 
| Idioma: | English | 
| Publicat: | Cedar Falls
          Extension Service, State College of Iowa
    
        c1965. | 
| Col·lecció: | Iowa. State College, Cedar Falls. Educational service publication
              no. 29 | 
| Matèries: |