Rubank elementary method : flute or piccolo : a fundamental course for individual or like-instrument class instruction - Petersen, A. C. (Rubank, 1934)
En la portada: "A fundamental course for individual of like-instrument class instruction"–Acompañado de 1 hoja plegada titulada: Rubank boehm system flute and piccolo chart : with closed G sharp key /A. C. Petersen