Indicators of environmental impact: plan of the improvement of the high watershed of the Virilla river, Costa Rica

Eitemau Tebyg

• Indicadores de impacto ambiental: plan de mejoramiento ambiental de la cuenca del río Virilla, Costa Rica
  gan: Ramos O'hara, J.A.
  Cyhoeddwyd: (1996)
• Undeground water resources situation of the Aguas Calientes river watershed, Nicaragua
  gan: Obando Soriano, Fredy O.
  Cyhoeddwyd: (2005)
• Use of bacteriophages of bacteroides as indicators of the source of origin of fecal contamination in the Bogotá river basin, Colombia
  gan: Sastoque, Angela M.
  Cyhoeddwyd: (2010)
• Water quality assessment in the Reventado's watershed, Cartago, Costa Rica, oriented to the development of indicators of sustainability
  gan: Villegas Osorio, Javier G.
  Cyhoeddwyd: (1995)
• The effect of coffee-eucalyptus deglupta agroforestry systems over water contamination with nitrates in micro-watershed from the south zone of Costa Rica
  gan: Renderos Durán, Reina V.
  Cyhoeddwyd: (2001)