APA (7th ed.) Citation

Locke, J. An essay concerning human understanding: In four books. Written by John Locke, .. (The fifteenth edition.).

Chicago Style (17th ed.) Citation

Locke, John. An Essay Concerning Human Understanding: In Four Books. Written by John Locke, .. The fifteenth edition.

MLA (9th ed.) Citation

Locke, John. An Essay Concerning Human Understanding: In Four Books. Written by John Locke, .. The fifteenth edition.

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