APA (7th ed.) Citation

Flotow, F. v., Friedrich, W., & Buck, D. (1868). Stradella: Romantic opera in three acts. Clark & Booth.

Chicago Style (17th ed.) Citation

Flotow, Friedrich von, W. Friedrich, and Dudley Buck. Stradella: Romantic Opera in Three Acts. Hartford: Clark & Booth, 1868.

MLA (8th ed.) Citation

Flotow, Friedrich von, et al. Stradella: Romantic Opera in Three Acts. Clark & Booth, 1868.