Παραπομπή σε μορφή APA (7η εκδ.)

Whewell, W. (1839). On the foundations of morals: Four sermons preached before the University of Cambridge, November 1837 (2nd edition.). Deighton ; John W. Parker and Son.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Whewell, William. On the Foundations of Morals: Four Sermons Preached Before the University of Cambridge, November 1837. 2nd edition. Cambridge ; London: Deighton ; John W. Parker and Son, 1839.

Παραπομπή σε μορφή MLA (8th εκδ.)

Whewell, William. On the Foundations of Morals: Four Sermons Preached Before the University of Cambridge, November 1837. 2nd edition. Deighton ; John W. Parker and Son, 1839.