4 escuelas experimentales norteamericanas /
| Main Author: | |
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| Format: | Book |
| Language: | Spanish |
| Published: |
Buenos Aires :
Kapelusz ,
1958.
|
| Edition: | 2. ed. |
| Series: | Biblioteca de Cultura Pedagógica ;
22 |
| Subjects: |
| Physical Description: | xi, 226 páginas. |
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