APA-viite (7. p.)
Langan, J. (2008). College Writing Skills with Readings (7th ed.). McGraw Hill.
Chicago-viite (17. p.)
Langan, John. College Writing Skills with Readings. 7th ed. New York: McGraw Hill, 2008.
MLA-viite (9. p.)
Langan, John. College Writing Skills with Readings. 7th ed. McGraw Hill, 2008.
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