Hurd, L. C. (1966). First experiences in music. Belmont.
Lua i Stíl Chicago (17ú heag.)Hurd, Lyman C. First Experiences in Music. Wadsworth: Belmont, 1966.
Lua MLA (9ú heag.)Hurd, Lyman C. First Experiences in Music. Belmont, 1966.
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