APA (7th ed.) Citation

Bergsma, W. L. (1946). First string quartet. G. Schirmer.

Chicago Style (17th ed.) Citation

Bergsma, William Laurence. First String Quartet. New York: G. Schirmer, 1946.

MLA (9th ed.) Citation

Bergsma, William Laurence. First String Quartet. G. Schirmer, 1946.