APA (7th ed.) Citation

Marchesi, S., Osgood, G. L., & Baker, T. (1927). Twenty elementary and progressive vocalises (with Italian words): For medium voice : op. 15. G. Schirmer.

Chicago Style (17th ed.) Citation

Marchesi, Salvatore, George L. Osgood, and Theodore Baker. Twenty Elementary and Progressive Vocalises (with Italian Words): For Medium Voice : Op. 15. New York: G. Schirmer, 1927.

MLA (9th ed.) Citation

Marchesi, Salvatore, et al. Twenty Elementary and Progressive Vocalises (with Italian Words): For Medium Voice : Op. 15. G. Schirmer, 1927.