APA (7th ed.) Zitazioa
Heibach, J. (2015). Muhammad ʿAbd al-Malik al-Mutawakkil: A Political Biography. Vol 4 (2015). https://doi.org/10.17192/meta.2015.4.3260
Chicago Style (17th ed.) Zitazioa
Heibach, Jens. "Muhammad ʿAbd Al-Malik Al-Mutawakkil: A Political Biography." Vol 4 (2015) 2015. https://doi.org/10.17192/meta.2015.4.3260.
MLA (9th ed.) Zitazioa
Heibach, Jens. "Muhammad ʿAbd Al-Malik Al-Mutawakkil: A Political Biography." Vol 4 (2015), 2015, https://doi.org/10.17192/meta.2015.4.3260.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.