Παραπομπή σε μορφή APA (7η εκδ.)

Hume, D. (1975). Enquiries concerning human understanding and concerning the principles of morals (3rd edition.). Clarendon Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hume, David. Enquiries Concerning Human Understanding and Concerning the Principles of Morals. 3rd edition. Oxford: Clarendon Press, 1975.

Παραπομπή σε μορφή MLA (8th εκδ.)

Hume, David. Enquiries Concerning Human Understanding and Concerning the Principles of Morals. 3rd edition. Clarendon Press, 1975.