@book{UBHD-1067139, author={Ballesteros Beretta, Antonio}, title={Alfonso X el Sabio}, edition={1. ed.}, publisher={Salvat}, address={Barcelona [u.a.]}, year={1963}, pages={XV, 1142 S.}, language={spa}, library={UB [Signatur: 64 B 1440] ; KI [Signatur: <KI> xE A H 1915] ; RO [Signatur: RO/IN 8204 B191 A38]}, }