APA (7th ed.) Zitazioa
Worthing, M. G. (1978). Elements of music: A Programmed Approach. Brown.
Chicago Style (17th ed.) Zitazioa
Worthing, Michelle G. Elements of Music: A Programmed Approach. Iowa: Brown, 1978.
MLA (9th ed.) Zitazioa
Worthing, Michelle G. Elements of Music: A Programmed Approach. Brown, 1978.
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