APA (7th ed.) Citation

Skornicka, J. (1937). Rubank intermediate method Cornet or trumpet. Rubank.

Chicago Style (17th ed.) Citation

Skornicka, J.E. Rubank Intermediate Method Cornet or Trumpet. Chicago, IL: Rubank, 1937.

MLA (9th ed.) Citation

Skornicka, J.E. Rubank Intermediate Method Cornet or Trumpet. Rubank, 1937.