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030313s1967 xxu ||||| eng |
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|a 7348303
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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|a eng
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|a 507
|b W319t
|2 00
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|a Washton, Nathan Seymour
|d 1916-
|e Autor/a
|4 aut
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|a Teaching science creatively in the secondary schools /
|c Nathan Seymour Washton.
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| 260 |
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|a Philadelphia :
|b W.B. Saunders,
|c 1967.
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| 300 |
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|a 430 páginas.
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0 |
7 |
|a CIENCIA
|x ESTUDIO Y ENSEÑANZA
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| 912 |
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|a 24-JAN-2006 - CHAVARRIA LOBO, MARIA DEL MILAGRO
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| 949 |
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|a -Gerlin
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| 916 |
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|a Reconversión
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