O'Neill, R. (1985). Kernel one: Students' book (15a. ed.). Longman.
Lua i Stíl Chicago (17ú heag.)O'Neill, Robert. Kernel One: Students' Book. 15a. ed. New York: Longman, 1985.
Lua MLA (9ú heag.)O'Neill, Robert. Kernel One: Students' Book. 15a. ed. Longman, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.