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981103s1975 xxu ||||| eng |
| 035 |
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|a 3485663
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| 040 |
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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| 041 |
0 |
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|a eng
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| 082 |
0 |
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|a 632.95
|b M588p
|2 00
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| 100 |
1 |
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|a Metcalf, Robert Lee
|d 1916-
|e Autor/a
|4 aut
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| 245 |
1 |
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|a Pesticide and environmental quality in Illinois /
|c by R. L. Metcalf and James R. Sanborn
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| 260 |
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|a Urbana Ill :
|b Natural History Survey División,
|c 1975.
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| 300 |
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|a 381-436 páginas :
|b ilustraciones
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| 650 |
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|a PLAGUICIDAS
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| 700 |
1 |
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|a Sanborn, James R.
|e Autor/a
|4 aut
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| 916 |
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|a Reconversión
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