Izdavač: Penguin Books Ltd., Harmondsworth 1974; A Pelican Original

Izdavač: Prentice-Hall 1972;

Izdavač: George Allen and Unwin Ltd, London 1970; Muirhead Library of Philosophy

Izdavač: Boni and Liveright, New York 1919;

Izdavač: Cambridge University Press, Cambrige 1977;

Izdavač: Oxford University Press, London 1968; Oxford Paperbacks

Izdavač: A Delta Book, New York 1975;

Izdavač: Washington Square Press, New York 1970;

Izdavač: Washington Square Press, New York 1969;

Izdavač: University of London Press Ltd, New York University Press, London, New York 1971;

Izdavač: Clarendon Press, Oxford 1901; Berkley's Complete Works in Four Volumes: knj. 1, 1. izd.

Izdavač: Heinemann, London 1972;

Izdavač: The Free Press, Collier Macmillan Publishers, London 1969;

Izdavač: Oxford University Press, London-New York-Toronto 1952; The Home Universiti Library of Modern Knowledge: knj. 74

Izdavač: Oxford at the Clarendon Press 1879; 2. izd.

Izdavač: Penguin Books Ltd. 1963;

Izdavač: Harper and Row 1970;

Izdavač: George Allen and Unwin Ltd, London 1958;

Izdavač: Hutchinson Educational 1968;

Izdavač: A Mentor Book, New York 1970; The New American Library

Izdavač: Methuen and Co Ltd, London 1968; A University Paperback

Izdavač: Vintage Books, New York 1961;

Izdavač: Philosophical Library, New York 1968;

Izdavač: Unwin Books, London 1967;