Dyfyniad APA
Langan, J. (2008). College Writing Skills with Readings (7th ed.). McGraw Hill.
Dyfyniad Arddull Chicago
Langan, John. College Writing Skills with Readings. 7th ed. New York: McGraw Hill, 2008.
Dyfyniad MLA
Langan, John. College Writing Skills with Readings. 7th ed. McGraw Hill, 2008.
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