Rolland, P., & Mutschler, M. (1986). The teaching of action in string playing: Violin and Viola. / Paul Rolland with Marla Mutschler (Revised ed.). Boosey & Hawkes.
Lua i Stíl Chicago (17ú heag.)Rolland, Paul, agus Marla Mutschler. The Teaching of Action in String Playing: Violin and Viola. / Paul Rolland with Marla Mutschler. Revised ed. Urbana, Ill.: Boosey & Hawkes, 1986.
Lua MLA (8ú heag.)Rolland, Paul, agus Marla Mutschler. The Teaching of Action in String Playing: Violin and Viola. / Paul Rolland with Marla Mutschler. Revised ed. Boosey & Hawkes, 1986.
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