APA (7th ed.) Citation

Schumann, R. (2004). Quartet in a minor, op. 41, no. 1. Project Gutenberg.

Chicago Style (17th ed.) Citation

Schumann, Robert. Quartet in a Minor, Op. 41, No. 1. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Schumann, Robert. Quartet in a Minor, Op. 41, No. 1. Project Gutenberg, 2004.

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