Walters, R. (1993). Baritone, Bass. Hal Leonard.
Lua i Stíl Chicago (17ú heag.)Walters, Richard. Baritone, Bass. Milwaukee, Wis.: Hal Leonard, 1993.
Lua MLA (8ú heag.)Walters, Richard. Baritone, Bass. Hal Leonard, 1993.
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