APA (7th ed.) Citation

Nevin, E., & Field, E. (1891). Little boy blue , op. 12. G. Schirmer.

Chicago Style (17th ed.) Citation

Nevin, Ethelbert, and Eugene Field. Little Boy Blue , Op. 12. New York: G. Schirmer, 1891.

MLA (9th ed.) Citation

Nevin, Ethelbert, and Eugene Field. Little Boy Blue , Op. 12. G. Schirmer, 1891.