Howard-Williams, D., & Tomalin, M. Instant Lessons 3, Advanced.
芝加哥风格引文Howard-Williams, Deirdre, 与 Mary Tomalin. Instant Lessons 3, Advanced.
MLA引文Howard-Williams, Deirdre, 与 Mary Tomalin. Instant Lessons 3, Advanced.
警告：这些引文格式不一定是100％准确.
APA引文