APA (7th ed.) Zitazioa

Aaron, R. I. (1967). The theory of universals (2a. ed.). Oxford University.

Chicago Style (17th ed.) Zitazioa

Aaron, Richard I. The Theory of Universals. 2a. ed. Londres: Oxford University, 1967.

MLA (9th ed.) Zitazioa

Aaron, Richard I. The Theory of Universals. 2a. ed. Oxford University, 1967.