Rolland, P., & Mutschler, M. (1986). The teaching of action in string playing: Violin and Viola. / Paul Rolland with Marla Mutschler (Revised ed.). Boosey & Hawkes.
Chicago-referens (17:e uppl.)Rolland, Paul, och Marla Mutschler. The Teaching of Action in String Playing: Violin and Viola. / Paul Rolland with Marla Mutschler. Revised ed. Urbana, Ill.: Boosey & Hawkes, 1986.
MLA-referens (8:e uppl.)Rolland, Paul, och Marla Mutschler. The Teaching of Action in String Playing: Violin and Viola. / Paul Rolland with Marla Mutschler. Revised ed. Boosey & Hawkes, 1986.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.