APA (7th ed.) Citation

Beethoven, L. v., & Wagner, R. [Álbum piano-harmonium]. Druch von Breitkopf.

Chicago Style (17th ed.) Citation

Beethoven, Ludwig van, and Richard Wagner. [Álbum Piano-harmonium]. Leipzig: Druch von Breitkopf.

MLA (9th ed.) Citation

Beethoven, Ludwig van, and Richard Wagner. [Álbum Piano-harmonium]. Druch von Breitkopf.

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