APA (7th ed.) Citation

Hume, D. (1957). An inquiry concerning the principles of morals / by D. Hume. Bobbs-Merrill.

Chicago Style (17th ed.) Citation

Hume, David. An Inquiry Concerning the Principles of Morals / by D. Hume. Bobbs-Merrill, 1957.

MLA (9th ed.) Citation

Hume, David. An Inquiry Concerning the Principles of Morals / by D. Hume. Bobbs-Merrill, 1957.

Warning: These citations may not always be 100% accurate.