APA (7th ed.) Citation

Roy, K. G. (1989). Cheaper by the dozen: 12 flute duets, op. 124 ([Spielpartitur], 1. publ.). Mobart.

Chicago Style (17th ed.) Citation

Roy, Klaus G. Cheaper by the Dozen: 12 Flute Duets, Op. 124. [Spielpartitur], 1. publ. Hillsdale, NY: Mobart, 1989.

MLA (9th ed.) Citation

Roy, Klaus G. Cheaper by the Dozen: 12 Flute Duets, Op. 124. [Spielpartitur], 1. publ. Mobart, 1989.