APA (7th ed.) Zitazioa
Kelsen, H., Urbinati, N., Accetti, C. I., & Graf, B. (2013). The essence and value of democracy. Rowman & Littlefield Publishers.
Chicago Style (17th ed.) Zitazioa
Kelsen, Hans, Nadia Urbinati, Carlo Invernizzi Accetti, eta Brian Graf. The Essence and Value of Democracy. Lanham, Md. ; Plymouth, England: Rowman & Littlefield Publishers, 2013.
MLA (9th ed.) Zitazioa
Kelsen, Hans, et al. The Essence and Value of Democracy. Rowman & Littlefield Publishers, 2013.
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