Gower, Wm. Rubank advanced method, cornet or trumpet : : an outlined course of study designed to follow up any of the various elementary and intermediate methods / [electronic resource] Advanced method, cornet or trumpet / Wm. Gower and H. Voxman.. — Chicago : : Rubank,, c1940-c1954.. — 2 v. of music ; 30 cm. - Rubank educational library ; no. 94, 158.