Cita APA (7th ed.)

Santos, R. P., & Webern, A. v. (1970). Variations on a theme by Webern. s.n.

Cita Chicago (17th ed.)

Santos, Ramon Pagayon, i Anton von Webern. Variations on a Theme by Webern. [S.l: s.n, 1970.

Cita MLA (9th ed.)

Santos, Ramon Pagayon, i Anton von Webern. Variations on a Theme by Webern. s.n, 1970.