@book{gConstenlaBribri,
  address   = {San José, Costa Rica},
  author    = {Umaña, Adolfo Constenla and Figueroa, F. Elizondo and Mora, F. Pereira},
  pages     = {xv+164},
  publisher = {San José, Costa Rica: Editorial de la Universidad de Costa Rica},
  title     = {Curso Básico de Bribri},
  year      = {1998}
}