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20020909094714.0 |
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020410s1999 xxu ||||| eng |
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|a 0607928433
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|a 6870793
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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|a eng
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|a 363.738
|b K29s
|2 21
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|a Kelly, Valerie J.
|e Autor/a
|4 aut
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| 245 |
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|a Sources and transport of phosphorus and nitrogen during low-flow conditions in theTualatin River, Oregon, 1991-93 /
|c by Valerie J. Kelly, Dennis D. Lynch and Stewart A. Rounds
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| 260 |
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|a Reston, Va. :
|b U.S. Departamento of the Interior, Geological Survey,
|c 1999.
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|a vii, 94 páginas
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0 |
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|a U.S. Geological Survey Water Supply Paper
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| 650 |
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|a CALIDAD DEL AGUA
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| 650 |
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|a FOSFORO
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| 650 |
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|x ASPECTOS AMBIENTALES
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| 700 |
1 |
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|a Lynch, Dennis D.
|e Autor/a
|4 aut
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| 700 |
1 |
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|a Rounds, Stewart A.
|e Autor/a
|4 aut
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| 912 |
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|a 09-SEP-2002 - ROJAS SOTO, ANA EUDITH
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| 917 |
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|a 10-APR-2002 - HERNANDEZ GUZMAN, MARLIN TAYIRA
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| 916 |
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|a Centro Catalográfico
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