The new opera entitled Loretta, a tale of Seville :
in three acts ... /
the whole of the music composed by M. Lavenu ; the libretto by Alfred Bunn.
APA Citation
Lavenu, L. Henry., Bunn, A. (1846). The new opera entitled Loretta, a tale of Seville: in three acts .... London: W.S. Johnson.
MLA Citation
Lavenu, Louis Henry, 1818-1859, and Alfred Bunn. The New Opera Entitled Loretta, a Tale of Seville: In Three Acts .... London: W.S. Johnson, 1846.
Warning: These citations may not always be complete (especially for serials).