Jacobs, W. (1985). Restructured Etudes for Tuba: Bd. 1 / ed. by Wesley Jacobs. Encore Music Publ..
Chicago-Zitierstil (17. Ausg.)Jacobs, Wesley. Restructured Etudes for Tuba: Bd. 1 / Ed. by Wesley Jacobs. Troy, Mich.: Encore Music Publ., 1985.
MLA-Zitierstil (8. Ausg.)Jacobs, Wesley. Restructured Etudes for Tuba: Bd. 1 / Ed. by Wesley Jacobs. Encore Music Publ., 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.