@book{5826,
  author = {Bernardo Estornés Lasa},
  title = {Cómo han sido y cómo son los vascos},
  year = {1974},
  series = {Aralar},
  publisher = {Auñamendi},
  school = {Auñamendi},
  address = {San Sebastián},
  isbn = {84-7025-170-8},
  language = {Español},
}