APA (7th ed.) Citation

Porter, Q. (1937). Sixth string quartet (Score.). Schirmer.

Chicago Style (17th ed.) Citation

Porter, Quincy. Sixth String Quartet. Score. New York: Schirmer, 1937.

MLA (9th ed.) Citation

Porter, Quincy. Sixth String Quartet. Score. Schirmer, 1937.

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