Langan, J. (2004). Sentence skills, form B. A workbook for writers. Oxford University.
Παραπομπή Chicago StyleLangan, John. Sentence Skills, Form B. A Workbook for Writers. Oxford University, 2004.
Παραπομπή MLALangan, John. Sentence Skills, Form B. A Workbook for Writers. Oxford University, 2004.
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