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Mostrando ítems 21-30 de 56
Selected biological characteristics of streams in the southeastern Uinta basin, Utah and Colorado
(Geological Survey, 1981)
Manual on water-quality monitoring : planning and implementation of sampling and field testing
(Secretariat of the World Meteorological Organization, 1988)
Water quality : characteristics, modeling, modification
(Addison-Wesley, 1987)
Manejo integral del recurso hídrico a nivel de cuencas : cuenca del río Huasco III región
(Dirección de Riego, 1997)
GEMS Water data summary 1982-1984
(GEMS, 1987)
National water summary 1984- : hydrologic events, select water quality trends, and groun water resources
(Geological Survey, 1985)
National water summary 1983- : hydrologic events and issues
(Geological Survey, 1984)