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20120328185003.0 |
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080728s1991 000 0 spa d |
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|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
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|a 614.772
|b R463s
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|a Reynolds, Jenny S.
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|a Soil nitrogen dynamics in relation to groundwater contamination in the Valle Central, Costa Rica /
|c by Jenny S. Reynolds
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|a Michigan :
|b J.S.Reynolds ,
|c 1991
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|a xvolmenes, 160 páginas :
|b ilustraciones ;
|c 28 cm.
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|a Tesis (Doctor en filosofía. Recursos Naturales)-- Universidad de Michigan, 1991
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|a Bibliografía: p. 127-129
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|a Apéndices (p. 151-160)
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|a ABONOS ORGANICOS
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|a CONTAMINACION DEL AGUA
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|a COSTA RICA
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|a ABONOS NITROGENADOS
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