O'Neill, R. (1985). Kernel one: Students' book (15a. ed.). Longman.
Chicago-čujuhus (17. p.)O'Neill, Robert. Kernel One: Students' Book. 15a. ed. New York: Longman, 1985.
MLA-čujuhus (9. p.)O'Neill, Robert. Kernel One: Students' Book. 15a. ed. Longman, 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.