Skornicka, J. E. (1937). Cornet or trumpet: A follow up course for individual or like-instrument class instruction / J.E.Skornicka. Rubank.

Skornicka, J. E. Cornet or Trumpet: A Follow Up Course for Individual or Like-instrument Class Instruction / J.E.Skornicka. Miami, Fl.: Rubank, 1937.

Skornicka, J. E. Cornet or Trumpet: A Follow Up Course for Individual or Like-instrument Class Instruction / J.E.Skornicka. Rubank, 1937.