Cita APA (7a ed.)

Aaron, R. I. (1967). The theory of universals (2nd ed.). At the Clarendon Press.

Cita Chicago Style (17a ed.)

Aaron, Richard I. The Theory of Universals. 2nd ed. Oxford: At the Clarendon Press, 1967.

Cita MLA (9a ed.)

Aaron, Richard I. The Theory of Universals. 2nd ed. At the Clarendon Press, 1967.