Cita APA (7th ed.)

Wagner, R., & Wagner, R. (1888). [Oper und Drama.]. Fritzsch.

Cita Chicago (17th ed.)

Wagner, Richard, i Richard Wagner. [Oper Und Drama.]. Leipzig: Fritzsch, 1888.

Cita MLA (8th ed.)

Wagner, Richard, i Richard Wagner. [Oper Und Drama.]. Fritzsch, 1888.