APA (7th ed.) Zitazioa
Allen, R. T. (2014). Ethics as scales of forms. Cambridge Scholars Publishing.
Chicago Style (17th ed.) Zitazioa
Allen, R. T. Ethics as Scales of Forms. Newcastle upon Tyne, England: Cambridge Scholars Publishing, 2014.
MLA (9th ed.) Zitazioa
Allen, R. T. Ethics as Scales of Forms. Cambridge Scholars Publishing, 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.