Gregorovius, Ferdinand Atenais / Ferdinadd Gregorovius ; Jose Antonio Molina Gomez - 1a ed. - Barcelona, Espaņa : Herder, c2009 - 228 p. : il. ; 22 cm. ISBN: 9788425425820 Subjects--Topical Terms: Historia medieval LC Class. No.: DG811 G74 2009 / DG811 G74 2009