Tohutoro APA (7th ed.)
Higgins, L., & Campbell, P. S. (2010). Free to be musical: Group improvisation in music. Rowman & Littlefield Education.
Tohutoru Kātū Chicago (17th ed.)
Higgins, Lee, me Patricia Shehan Campbell. Free to Be Musical: Group Improvisation in Music. Lanham, MD: Rowman & Littlefield Education, 2010.
Tohutoro MLA (9th ed.)
Higgins, Lee, me Patricia Shehan Campbell. Free to Be Musical: Group Improvisation in Music. Rowman & Littlefield Education, 2010.
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