APA (7th ed.) Citation

Coombs, C. W., & Wookey, L. M. (1917). The conqueror: Duet for soprano and contralto or tenor and baritone. G. Schirmer.

Chicago Style (17th ed.) Citation

Coombs, C Whitney, and L M. Wookey. The Conqueror: Duet for Soprano and Contralto or Tenor and Baritone. New York: G. Schirmer, 1917.

MLA (9th ed.) Citation

Coombs, C Whitney, and L M. Wookey. The Conqueror: Duet for Soprano and Contralto or Tenor and Baritone. G. Schirmer, 1917.