Soars, J., & Soars, L. New headway English course. Oxford University Press.
芝加哥风格引文Soars, John, 与 Liz Soars. New Headway English Course. Oxford : c2000 [2001 printing]: Oxford University Press.
MLA引文Soars, John, 与 Liz Soars. New Headway English Course. Oxford University Press.
警告：这些引文格式不一定是100％准确.