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|a Universidad Nacional de Agricultura
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|a 99-77-47-194-0
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|a Sain, Gustavo
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|a Desafios presentes y futuros del medio ambiente y la productividad en la agreompresa Centroamericana /
|c Gustavo Sain
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|a San Jose, Costa Rica,
|b INCAE,
|c 1995
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|a 96 p.
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|x RECURSOS NATURALES
|x AMERICA CENTRAL
|x MEDIO AMBIENTE
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