Rothwell, E. (1953). Orchestral Studies: 990 difficult passages from the symphonic repertoire for oboe and cor anglais / selected and edited by Evelyn Rothwell. Boosey & Hawkes.
Chicago-viite (17. p.)Rothwell, Evelyn. Orchestral Studies: 990 Difficult Passages from the Symphonic Repertoire for Oboe and Cor Anglais / Selected and Edited by Evelyn Rothwell. London: Boosey & Hawkes, 1953.
MLA-viite (8. p.)Rothwell, Evelyn. Orchestral Studies: 990 Difficult Passages from the Symphonic Repertoire for Oboe and Cor Anglais / Selected and Edited by Evelyn Rothwell. Boosey & Hawkes, 1953.
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