Nelson, S. M. (1974). Two in one for two violins: Violin duets in the first finger pattern (Partitur.). Boosey & Hawkes.
Chicago-viite (17. p.)Nelson, Sheila M. Two in One for Two Violins: Violin Duets in the First Finger Pattern. Partitur. London: Boosey & Hawkes, 1974.
MLA-viite (8. p.)Nelson, Sheila M. Two in One for Two Violins: Violin Duets in the First Finger Pattern. Partitur. Boosey & Hawkes, 1974.
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