APA aipamena

David Velleman J. (2000). The possibility of practical reason. Clarendon.

Chicago Style aipamena

David Velleman J. The Possibility of Practical Reason. Oxford: Clarendon, 2000.

MLA aipamena

David Velleman J. The Possibility of Practical Reason. Clarendon, 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.