Manuale dantesco per gli studiosi della Divina commediaRuggiero Leoncavallo · First published 1887Open the Tome
ZazàRuggiero Leoncavallo, Pierre Berton, Charles Simon, Richard Macnutt, John Milton and Ruth Neils Ward Collection (Harvard Theatre Collection) · First published 1900Open the Tome
Der BajazzoRuggiero Leoncavallo, Ludwig Hartmann, John Milton and Ruth Neils Ward Collection (Harvard Theatre Collection) · First published 1892Open the Tome
