00828cam a2200229 a 450000500170000000800410001702000150005804000180007304100080009104400080009908200170010710000200012424500980014426000830024230001210032565000280044665000350047465000280050970000200053770000220055770000190057920160225120607.0980416s1998    dcuab    bs   000 0 eng    a156973254X  aDLCcDLCdDLC  aeng  axxu00a551.48bR45w1 aRevenga, Carmen10aWatersheds of the world :becological value and vulnerability /cCarmen Revenga ... [et al.].  aWashington, D.C. :bWorld Resources Institute :bWorldwatch Institute,cc1998.  av, aproximadamente 205 páginas sin numeración consecutiva :bIlustraciones a color, mapas a color ;c28 x 22 cm. 0aWatershedsxStatistics. 0aWatershed ecologyxStatistics.16aCuencas hidrográficas1 aMurray, Siobhan1 aAbramovitz, Janet1 aHammond, Allen