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230810s1987 ctu gr ||||||eng d |
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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| 245 |
1 |
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|a Investing in agricultural supply :
|b the determinants of agricultural research and extension investment /
|c by M. Ann Judd, James K. Boyce, Robert E. Evenson.
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| 260 |
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|a New Haven, Connecticut :
|b Yale University,
|c 1987.
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| 300 |
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|a Páginas 77-113.
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| 490 |
0 |
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|a Center paper
|v no. 386
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1 |
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|a Boyce, James K
|e Autor/a
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| 700 |
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|a Evenson, Robert Eugene
|d 1934-2013
|e Autor/a
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| 949 |
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|a -AEM
|