APA (7th ed.) Citation

Beethoven, L. v. String trio in E flat major, opus 3.

Chicago Style (17th ed.) Citation

Beethoven, Ludwig van. String Trio in E Flat Major, Opus 3.

MLA (9th ed.) Citation

Beethoven, Ludwig van. String Trio in E Flat Major, Opus 3.

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