APA (7th ed.) Citation

Flotow, F. v. Martha (Martha): Opera in four acts. (With Italian and English words). Boosey.

Chicago Style (17th ed.) Citation

Flotow, Friedrich von. Martha (Martha): Opera in Four Acts. (With Italian and English Words). London: Boosey.

MLA (9th ed.) Citation

Flotow, Friedrich von. Martha (Martha): Opera in Four Acts. (With Italian and English Words). Boosey.

Warning: These citations may not always be 100% accurate.