APA (7th ed.) Citation

Beethoven, L. v. (2005). String Quartet No. 13 in B flat major Opus 130. Project Gutenberg.

Chicago Style (17th ed.) Citation

Beethoven, Ludwig van. String Quartet No. 13 in B Flat Major Opus 130. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Beethoven, Ludwig van. String Quartet No. 13 in B Flat Major Opus 130. Project Gutenberg, 2005.

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