Taylor, E. R. (1993). The AB guide to music theory (Revised 1993.). Associated Board of the Royal Schools of Music.
Lua i Stíl Chicago (17ú heag.)Taylor, Eric Robert. The AB Guide to Music Theory. Revised 1993. London: Associated Board of the Royal Schools of Music, 1993.
Lua MLA (9ú heag.)Taylor, Eric Robert. The AB Guide to Music Theory. Revised 1993. Associated Board of the Royal Schools of Music, 1993.
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