@inbook{inbook9b62b202,
title   = {Geographic overview of the Río Paraguay Basin, departamento Alto Paraguay, Paraguay},
author = {Willink, Philip W. and Sarmiento, Jaime and Chernoff, Barry and Toledo-Piza, Mônica and Mandelburger, Darío and Medina, Mirta},
year = {2001},
publisher = {Conservation International Center for Applied Biodiversity Science, Department of Conservation Biology},
journal   = {A biological assessment of the aquatic ecosystems of the Río Paraguay Basin, Alto Paraguay, Paraguay}
}