O'Neill, R. (1984). Kernel Three: Teacher's book. England: Longman.
Trích dẫn kiểu ChicagoO'Neill, Robert. Kernel Three: Teacher's Book. England: Longman, 1984.
MLA引文O'Neill, Robert. Kernel Three: Teacher's Book. England: Longman, 1984.
警告：這些引文格式不一定是100％准確.