Cita APA

Towers, J. 1. (1967). Dictionary-catalogue of operas and operettas. New York, New York: Da Capo.

Citación estilo Chicago

Towers, John 1836-1992. Dictionary-catalogue of Operas and Operettas. New York, New York: Da Capo, 1967.

Cita MLA

Towers, John 1836-1992. Dictionary-catalogue of Operas and Operettas. New York, New York: Da Capo, 1967.