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|a Sistema de Bibliotecas de la Universidad Nacional de Agricultura
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|a Leagans, J. Paul; Loomis, Charles P.
|9 8979
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|a Cambios socioeconómicos en la agricultura moderna /
|c J. Paul, Leagans; Charles P., Loomis
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|a 1a. ed.
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|a México,
|b EDITORIAL LIMUSA,
|c 1977,
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|a 408 p.
|b Imag.
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|x AGRICULTURA MODERNA
|x ECONOMIA-POLITICA
|9 8980
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