APA (7th ed.) Citation

Hume, D. (1907). An enquiry concerning the principles of morals. Open Court Pub. Co. ; Kegan Paul, Trench, Trubner.

Chicago Style (17th ed.) Citation

Hume, David. An Enquiry Concerning the Principles of Morals. Chicago : London: Open Court Pub. Co. ; Kegan Paul, Trench, Trubner, 1907.

MLA (9th ed.) Citation

Hume, David. An Enquiry Concerning the Principles of Morals. Open Court Pub. Co. ; Kegan Paul, Trench, Trubner, 1907.