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.
Lua i Stíl Chicago (17ú heag.)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.
Lua MLA (8ú heag.)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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.