APA (7th ed.) Citation

Mozart, J. C. W. A. String quartet... D minor. K.V. 421. Boosey & Hawkes.

Chicago Style (17th ed.) Citation

Mozart, Johann Chrysostom Wolfgang Amadeus. String Quartet... D Minor. K.V. 421. London: Boosey & Hawkes.

MLA (9th ed.) Citation

Mozart, Johann Chrysostom Wolfgang Amadeus. String Quartet... D Minor. K.V. 421. Boosey & Hawkes.