Lua APA (7ú heag.)
Anderson, L. H., Carroll, E., & Codecà, C. (2019). Speak: Il graphic novel. Il Castoro.
Lua i Stíl Chicago (17ú heag.)
Anderson, Laurie Halse, Emily Carroll, agus Chiara Codecà. Speak: Il Graphic Novel. Milano: Il Castoro, 2019.
Lua MLA (9ú heag.)
Anderson, Laurie Halse, et al. Speak: Il Graphic Novel. Il Castoro, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.