APA (7th ed.) Citation

Hummel, J. N. (1992). String quartets opus 30 (Scores.). SJ Music.

Chicago Style (17th ed.) Citation

Hummel, Johann Nepomuk. String Quartets Opus 30. Scores. Cambridge: SJ Music, 1992.

MLA (9th ed.) Citation

Hummel, Johann Nepomuk. String Quartets Opus 30. Scores. SJ Music, 1992.

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