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00862nam a2200229 u 4500 |
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000247634 |
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20110720143301.0 |
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s1981 s1981 enk ||||| eng |
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|a 0865980373
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|a 68152
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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 632.96
|b B615bi
|2 00
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|a Biological control in crop production :
|b invited papers presented at a symposium held May 18-21, 1980, at the Beltsville Agricultural Research Center (BARC), Beltsville, Maryland. --
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| 260 |
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|a London, Sydney :
|b Granada,
|c 1981.
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| 300 |
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|a 461 páginas :
|b ilustraciones ;
|c 23 cm.--
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| 490 |
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|a Beltsville symposia in agricultural research ;
|v 5)
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| 650 |
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|a CONTROL DE PLAGAS
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| 650 |
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|a PROTECCION DE LAS PLANTAS
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| 650 |
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|a SISTEMAS DE CONTROL BIOLOGICO
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| 949 |
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|a JC-BJC
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| 916 |
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|a Registros del LS-2000
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