I due orsi
Subtitle: opera buffa in tre atti
By: di Antonio Ghislanzoni ; musica del maestro Costantino dall'Argine
Contributors: Dall'Argine, Costantino, 1842-1877
Publisher: Coi Tipi di Francesco Lucca
Published: 1867
Place of publication: Milano
Language: ita
Number of pages: 36
Subjects: Operas; Librettos
Other titles: UNC Italian Opera Libretto Collection.
Notes: Performers' names not given.

Copies 1-2: UNC Italian Opera Libretto Collection.

Copy 1 has printing date of "1-67" on title page; copy 2 has printing date of "10-67" on title page.