APA (7th ed.) Zitazioa
(2014). Standards for reporting research: Free bonus report. Pyrczak publishing.
Chicago Style (17th ed.) Zitazioa
Standards for Reporting Research: Free Bonus Report. Glendale, CA: Pyrczak publishing, 2014.
MLA (9th ed.) Zitazioa
Standards for Reporting Research: Free Bonus Report. Pyrczak publishing, 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.