Cita APA

Friml, R. 1., & Harbach, O. A. 1. (1912). Sympathy: Waltz-song from the comedy-opera "The firefly". New York: G. Schirmer, Inc..

Citación estilo Chicago

Friml, Rudolf 1879-1972, y Otto Abels 1873-1963 Harbach. Sympathy: Waltz-song From the Comedy-opera "The Firefly". New York: G. Schirmer, Inc., 1912.

Cita MLA

Friml, Rudolf 1879-1972, y Otto Abels 1873-1963 Harbach. Sympathy: Waltz-song From the Comedy-opera "The Firefly". New York: G. Schirmer, Inc., 1912.