El tiempo de la innovación /
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| Corporate Author: | |
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| Other Authors: | , |
| Format: | Book |
| Language: | Español |
| Published: |
México :
Secretaría de Educación Pública,
1975, c1975
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| Series: | (SepSetentas ;
193, 194) |
| Subjects: | |
| Tags: |
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| Physical Description: | 2 v. (164, 147 p.) |
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