APA (7th ed.) Citation

Beethoven, L. v. String trio, opus 9, no. 1-3.

Chicago Style (17th ed.) Citation

Beethoven, Ludwig van. String Trio, Opus 9, No. 1-3.

MLA (9th ed.) Citation

Beethoven, Ludwig van. String Trio, Opus 9, No. 1-3.

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