Cita APA (7th ed.)
Aune, B. (1991). Knowledge of the external world. Routledge.
Cita Chicago (17th ed.)
Aune, Bruce. Knowledge of the External World. London ; New York: Routledge, 1991.
Cita MLA (9th ed.)
Aune, Bruce. Knowledge of the External World. Routledge, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.