Dyfyniad APA

Langan, J. (2003). Sentence skills: A workbook for writers : form A (7th ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Langan, John. Sentence Skills: A Workbook for Writers : Form A. 7th ed. Boston: McGraw-Hill, 2003.

Dyfyniad MLA

Langan, John. Sentence Skills: A Workbook for Writers : Form A. 7th ed. McGraw-Hill, 2003.

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