Lua APA (7ú heag.)

Cook, V. (1938). Lyra: Progressive etudes for cornet or trumpet. Rubank.

Lua i Stíl Chicago (17ú heag.)

Cook, Vander. Lyra: Progressive Etudes for Cornet or Trumpet. Chicago: Rubank, 1938.

Lua MLA (9ú heag.)

Cook, Vander. Lyra: Progressive Etudes for Cornet or Trumpet. Rubank, 1938.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.