APA (7th ed.) Citation

Wellesz, E. (1965). To sleep: Part-song for SATB (unaccompanied) : opus 94. Novello & Company.

Chicago Style (17th ed.) Citation

Wellesz, Egon. To Sleep: Part-song for SATB (unaccompanied) : Opus 94. [London, England]: Novello & Company, 1965.

MLA (9th ed.) Citation

Wellesz, Egon. To Sleep: Part-song for SATB (unaccompanied) : Opus 94. Novello & Company, 1965.