Silver Burdett Ginn, Jane Beethoven, & Rosanne Emery. (1991). Performing in Groups. Silver Burdett Ginn.
Lua i Stíl Chicago (17ú heag.)Silver Burdett Ginn, Jane Beethoven, agus Rosanne Emery. Performing in Groups. [Columbus, OH]: Silver Burdett Ginn, 1991.
Lua MLA (9ú heag.)Silver Burdett Ginn, et al. Performing in Groups. Silver Burdett Ginn, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.