Epperson, G. (1967). The musical symbol: A study of the philosophic theory of music ([1st ed.].). Iowa State University Press.
Citace podle Chicago (17th ed.)Epperson, Gordon. The Musical Symbol: A Study of the Philosophic Theory of Music. [1st ed.]. Ames: Iowa State University Press, 1967.
Citace podle MLA (8th ed.)Epperson, Gordon. The Musical Symbol: A Study of the Philosophic Theory of Music. [1st ed.]. Iowa State University Press, 1967.
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