Dyfyniad APA

Langan, J. (2008). English skills with readings (7th ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Langan, John. English Skills with Readings. 7th ed. Boston: McGraw-Hill, 2008.

Dyfyniad MLA

Langan, John. English Skills with Readings. 7th ed. McGraw-Hill, 2008.

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