Withrow, J. (2003). Effective writing: Writing skills for intermediate students of american english Student`s book. Cambridge University Press.
芝加哥风格引文Withrow, Jean. Effective Writing: Writing Skills for Intermediate Students of American English Student`s Book. Cambridge: Cambridge University Press, 2003.
MLA引文Withrow, Jean. Effective Writing: Writing Skills for Intermediate Students of American English Student`s Book. Cambridge University Press, 2003.
警告：这些引文格式不一定是100％准确.