Taylor, E. (1989). The AB guide to music theory. Part 1. The Associated Board of Royal Schools of Music.
Lua i Stíl Chicago (17ú heag.)Taylor, Eric. The AB Guide to Music Theory. Part 1. London: The Associated Board of Royal Schools of Music, 1989.
Lua MLA (9ú heag.)Taylor, Eric. The AB Guide to Music Theory. Part 1. The Associated Board of Royal Schools of Music, 1989.
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