O'Mara, P., & Lettner, C. (2004). A Rhythmic Concept for Funk - Fusion Drums: Peter O'Mara ; Christian Lettner. Advance Music.
Chicago-viite (17. p.)O'Mara, Peter, ja Christian Lettner. A Rhythmic Concept for Funk - Fusion Drums: Peter O'Mara ; Christian Lettner. [S.l.]: Advance Music, 2004.
MLA-viite (8. p.)O'Mara, Peter, ja Christian Lettner. A Rhythmic Concept for Funk - Fusion Drums: Peter O'Mara ; Christian Lettner. Advance Music, 2004.
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