APA aipamena

(2008). Sentence correction: Verbal strategy guide (3rd ed.). MG Prep Inc..

Chicago Style aipamena

Sentence Correction: Verbal Strategy Guide. 3rd ed. New York, N.Y.: MG Prep Inc., 2008.

MLA aipamena

Sentence Correction: Verbal Strategy Guide. 3rd ed. MG Prep Inc., 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.