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Research returns redux: a meta-analysis of the returns to agricultural R&D by Alston, Julian M., Marra, Michele C., Pardey, Philip G., Wyatt, T. J.

Published 2000

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Research returns redux: a meta-analysis of the returns to agricultural R&D by Alston, Julian M., Marra, Michele C., Pardey, Philip G., Wyatt, T. J.

Published 1998

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Artículo preliminar
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