Allen, M., Gillespie, R., & Hayes, P. T. (2004). An essential elements method advanced technique for strings: Technique and style studies for string orchestra. Hal Leonard.
Citazione stile Chigago Style (17a edizione)Allen, Michael, Robert Gillespie, e Pamela Tellejohn Hayes. An Essential Elements Method Advanced Technique for Strings: Technique and Style Studies for String Orchestra. Milwaukee: Hal Leonard, 2004.
Citatione MLA (9a ed.)Allen, Michael, et al. An Essential Elements Method Advanced Technique for Strings: Technique and Style Studies for String Orchestra. Hal Leonard, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.