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980917s1974 xxu ||||| eng |
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|a 2937403
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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 630.986.1
|b R914Y
|2 00
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1 |
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|a Ruddle, Kenneth
|e Autor/a
|4 aut
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|a The Yukpa cultivation system:
|b a study of shifting cultivation in Colombia and Venezuela
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260 |
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|a Berkeley :
|b University of California Press,
|c 1974.
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300 |
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|a 197 páginas :
|b ilustraciones fotografías
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650 |
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|a AGRICULTURA
|x COLOMBIA
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650 |
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|a AGRICULTURA
|x VENEZUELA
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916 |
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|a Reconversión
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