Keywords: Guglielmo Ratcliff Libretto 1895 cover.jpg Cover of the libretto of the opera Guglielmo Ratcliff by Mascagni first edition 1895 http //www mascagni org/works/ratcliff Mascagni org 1895 unknown publishing house Sonzogno Guglielmo Ratcliff Libretti of operas by Mascagni Opera libretti published by Sonzogno 1895 opera libretti PD-old |