APA (7th ed.) Citation

Bartók, B. (1956). 4th string quartet. Boosey & Hawkes.

Chicago Style (17th ed.) Citation

Bartók, Béla. 4th String Quartet. [London?]: Boosey & Hawkes, 1956.

MLA (9th ed.) Citation

Bartók, Béla. 4th String Quartet. Boosey & Hawkes, 1956.

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