Langan John. (2005). College Writing Skills With Readings (6th ed.). Mc Graw Hill.
Chicago Style (17th ed.) CitationLangan John. College Writing Skills With Readings. 6th ed. New York: Mc Graw Hill, 2005.
MLA (9th ed.) CitationLangan John. College Writing Skills With Readings. 6th ed. Mc Graw Hill, 2005.
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