Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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