O'Neill, R. (1985). Kernel one: Students' book (15a. ed.). Longman.
Chicagoスタイル(17版)引用形式O'Neill, Robert. Kernel One: Students' Book. 15a. ed. New York: Longman, 1985.
MLA(9版)引用形式O'Neill, Robert. Kernel One: Students' Book. 15a. ed. Longman, 1985.
警告: この引用は必ずしも正確ではありません.