APA (7th ed.) Citation

Hindemith, P., & Naegele, P. Sonate für Viola allein.

Chicago Style (17th ed.) Citation

Hindemith, Paul, and Philipp Naegele. Sonate Für Viola Allein.

MLA (9th ed.) Citation

Hindemith, Paul, and Philipp Naegele. Sonate Für Viola Allein.

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