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1[Donostia-San Sebastián] : Eusko-Ikaskuntza = Sociedad de Estudios Vascos , 2008
Otro soporte: The legal status of the basque language today : one language, three administrations, seven different geographies and a diaspora / Gloria Totoricagüena, Iñigo Urrutia, eds. , Donostia:Eusko Ikaskuntza,2008