Van Beringen, R. (2008). Bel Canto for Trombone and Piano: Performed by Ian Bousfield principal trombone, Vienna Philharmonic. De Haske Publications BV.
Chicago-viite (17. p.)Van Beringen, Robert. Bel Canto for Trombone and Piano: Performed by Ian Bousfield Principal Trombone, Vienna Philharmonic. Heerenveen, Holland: De Haske Publications BV, 2008.
MLA-viite (9. p.)Van Beringen, Robert. Bel Canto for Trombone and Piano: Performed by Ian Bousfield Principal Trombone, Vienna Philharmonic. De Haske Publications BV, 2008.
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