Langan, J. (2001). Sentence skills with readings (second edition.). McGraw-Hill.
Chicago Style (17. basım) AtıfLangan, John. Sentence Skills with Readings. second edition. Boston: McGraw-Hill, 2001.
MLA (8th ed.) AtıfLangan, John. Sentence Skills with Readings. second edition. McGraw-Hill, 2001.
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