APA aipamena

Langan, J. (2003). Sentence skills: A Workbook for Writers. New York: The McGraw-Hill Companies.

Chicago Style aipamena

Langan, John. Sentence Skills: A Workbook for Writers. New York: The McGraw-Hill Companies, 2003.

MLA aipamena

Langan, John. Sentence Skills: A Workbook for Writers. New York: The McGraw-Hill Companies, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.