APA

O'Connor D. J., . (1952). John Locke. London: Penguin Books.

Chicago

O'Connor D J, . 1952. John Locke. London: Penguin Books.

Harvard

O'Connor D. J., . (1952). John Locke. London: Penguin Books.

MLA

O'Connor D J, . John Locke. London: Penguin Books. 1952.