Ciencias naturales /
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| Other Authors: | |
| Format: | Book |
| Language: | Spanish |
| Published: |
San José, C.R :
EUNED ,
1978.
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| Edition: | 1. ed. |
| Series: | Ciclo básico. Unidad didáctica
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| Subjects: |
| Physical Description: | volúmenes ; : ilustraciones ; 21 cm. |
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