John Locke (1824). “Of human understanding. A defence of Mr. Locke's opinion concerning personal identity. Of the conduct of the understanding. Some thoughts concerning reading and study for a gentleman. Elements of natural philosophy. A new method of common-place-book”, p.261
John Locke, James Augustus St. John (1872). “Philosophical Works: Preliminary discourse by the editor. On the conduct of the understanding. An essay concerning human understanding”, p.128
John Locke (1812). “The works of John Locke. To which is added the life of the author and a collection of several of his pieces, publ. by mr. Desmaizeaux”, p.114