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010608s2000 xxu ||||| eng |
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|a 0896291162
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|a 6511213
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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 338.14
|b M587m
|2 20
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|a Alston, Julian M.
|e Autor/a
|4 aut
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|a A meta-analysis of rates of return to agricultural R&D :
|b ex Pede Herculem? /
|c Julian M. Alston ... [y otros].
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| 260 |
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|a Washington, D.C. :
|b International Food Policy Research Institute,
|c c2000.
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| 300 |
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|a x,148 páginas.
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|a Research report / International Food Policy Research Institute
|v 113
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| 650 |
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|a AGRICULTURA
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| 650 |
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|x ASPECTOS ECONOMICOS
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| 650 |
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|x INVESTIGACIONES
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| 917 |
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|a 08-JUN-2001 - JIMENEZ VELASCO, MARTA SYLIA
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