編集操作
参考文献
- Swan. M. (2005). Practical English usage.
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Copyright 2007,
by the Contributing Authors.
Cite/attribute Resource.
参考文献. (2009, January 20). Retrieved May 23, 2012, from OpenCourseWare OJC Web site: http://olib.wilmina.ac.jp/ocw/11-05/11-075-01/reference.
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