Opus 1-31

MLA

Webern, Anton, Pierre Boulez, and Charles Rosen. Opus 1-31. CBS, 1978.

APA

Webern, A., Boulez, P., & Rosen, C. (1978). Opus 1-31. CBS.

Chicago

Webern, Anton, Pierre Boulez, and Charles Rosen. Opus 1-31. : CBS, 1978.