Richards, E. (2009). Melody & Rhythm permutatios: More than 300 exercises for mallets and other instruments. Hal Leonard Corporation.
Chicago-Zitierstil (17. Ausg.)Richards, Emil. Melody & Rhythm Permutatios: More than 300 Exercises for Mallets and Other Instruments. Australia: Hal Leonard Corporation, 2009.
MLA-Zitierstil (8. Ausg.)Richards, Emil. Melody & Rhythm Permutatios: More than 300 Exercises for Mallets and Other Instruments. Hal Leonard Corporation, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.