7 ̂ Verano de la investigación científica
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| Corporate Author: | |
| Other Authors: | , |
| Format: | Article |
| Language: | Spanish |
| Published: |
Guanajuato :
Universidad de Guanajuato,
2001.
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| Subjects: | |
| Online Access: | https://elibro.net/ereader/unanicaragua/8282 |