APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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

Warning: These citations may not always be 100% accurate.