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1Freshwater ecoregions of North America: a conservation assessment Freshwater ecoregions of North America: a conservation assessmentpor 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.
Publicado em 2000Texto bibliotecaFAO IT