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1
Publicado en: Basque political systems / edited by Pedro Ibarra Güell and Xabier Irujo Ametzaga ; translated by Cameron J. Watson. , Reno : Center for Basques Studies, University of Nevada Reno, [2011]., p. 167-183
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2
Publicado en: Basque political systems / edited by Pedro Ibarra Güell and Xabier Irujo Ametzaga ; translated by Cameron J. Watson. , Reno : Center for Basques Studies, University of Nevada Reno, [2011]., p. 53-70
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3Paris [etc.] : L'Harmattan , [2004]Libro
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4Irun : Alberdania , 2004Libro
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5Oñati : IVAP, Herri Ardularitzaren Euskal Erakundea , 2003Libro