APA (7th ed.) Citation

Mara, L. (1919). Richard Wagner (12. Aufl.). Breitkopf & Härtel.

Chicago Style (17th ed.) Citation

Mara, La. Richard Wagner. 12. Aufl. Leipzig: Breitkopf & Härtel, 1919.

MLA (9th ed.) Citation

Mara, La. Richard Wagner. 12. Aufl. Breitkopf & Härtel, 1919.

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