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01027nam a2200265 a 4500 |
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000714759 |
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20240222100841.0 |
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231206s1996 xxcabd gr ||||||eng d |
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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0 |
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|a 553.790.972.86
|b G739n
|2 23
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1 |
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|a Graham, Gwyn
|e Autor/a
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1 |
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|a Nitrate attenuation beneath two coffee plantations in the Central Valley of Costa Rica /
|c Gwyn Graham.
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|a Ontario, Canada,
|c 1996.
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|a xi, 82 hojas :
|b ilustraciones en blanco y negro, gráficos en blanco y negro, mapas en blanco y negro.
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| 502 |
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|a Tesis (master of science in earth science)--University of Waterloo, 1996
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0 |
7 |
|a AGUAS SUBTERRANEAS
|z VALLE CENTRAL (COSTA RICA)
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7 |
|a NITRATOS
|x ANALISIS
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| 650 |
0 |
7 |
|a CONTAMINACION DEL AGUA
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| 650 |
0 |
7 |
|a BENEFICIO DE CAFE
|x ASPECTOS AMBIENTALES
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| 650 |
0 |
7 |
|a LIXIVIACION
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| 650 |
0 |
7 |
|a ABONOS Y FERTILIZANTES
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| 650 |
0 |
7 |
|a ANALISIS DE SUELOS
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| 900 |
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|a 2024-O
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| 916 |
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|a Centro Catalográfico
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| 949 |
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|a AM -AM
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