Bell, William J. Tuba warm ups and daily routine : for all tubas, trombones and baritones : from the William J. Bell Complete tuba method [Música impresa] / William J. Bell - New York : Charles Colin , cop. 1975 - 39 p. ; 28 cm Per a tuba. Per a trombó Publisher. No.: CC 3903 Núm. d' editor: Subjects--Topical Terms: TubaTrombóEstudis i exercicisPartitures Universal Decimal Class. No.: CONS