APA (7th ed.) Citation

Forster, E. M., Crozier, E., & Melville, H. (1961). Billy Budd: Opera in two acts (Rev. version 1961.). Boosey & Hawkes.

Chicago Style (17th ed.) Citation

Forster, E. M., Eric Crozier, and Herman Melville. Billy Budd: Opera in Two Acts. Rev. version 1961. London: Boosey & Hawkes, 1961.

MLA (9th ed.) Citation

Forster, E. M., et al. Billy Budd: Opera in Two Acts. Rev. version 1961. Boosey & Hawkes, 1961.