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1Freshwater ecoregions of North America: a conservation assessment Freshwater ecoregions of North America: a conservation assessmentby Abell, R.A., World Wildlife Fund, Washington, DC (USA) eng, Olson, D.M., Dinerstein, E., Hurley, P.T., Diggs, J.T., Eichbaum, W., Walters, S., Wettengel, W., Allnutt, T., Loucks, C.J., Hedao, P.
Published 2000Texto bibliotecaFAO IT