Bertoni, Umberto 12 Studies : for bassoon [Música impresa] / Umberto Bertoni ; edited by Leonard Sharrow - New York : International Music Company , cop. 1971 - 23 p. ; 31 cm Per a fagot Publisher. No.: 3134 Núm. d' editor: Subjects--Topical Terms: FagotEstudis i exercicisPartitures Universal Decimal Class. No.: CONS