Langan, J. (2005). College writing skills and college writing with readings (6th ed.). New York: McGraw-Hill.
Čikaški stil citiranjaLangan, John. College Writing Skills and College Writing With Readings. 6th ed. New York: McGraw-Hill, 2005.
MLA način citiranjaLangan, John. College Writing Skills and College Writing With Readings. 6th ed. New York: McGraw-Hill, 2005.
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