Friedland, E., & Downing, D. (2004). Hal Leonard bass method (Complete ed., 2nd ed.). Hal Leonard Corp..
Cita Chicago Style (17a ed.)Friedland, Ed, y Doug Downing. Hal Leonard Bass Method. Complete ed., 2nd ed. Milwaukee, WI: Hal Leonard Corp., 2004.
Cita MLA (8a ed.)Friedland, Ed, y Doug Downing. Hal Leonard Bass Method. Complete ed., 2nd ed. Hal Leonard Corp., 2004.
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