A Dictionary of Philosophical Logic
by
Roy T. Cook
Companion Encyclopedia of Asian Philosophy
by
Brian Carr and Indira Mahalingam
Dictionary of Twentieth-Century British Philosophers
Encyclopedia of Empiricism
by
Don Garrett and Edward Barbanell
Encyclopedia of Ethics
by
Lawrence C. Becker and Charlotte B. Becker
Meet the Philosophers of Ancient Greece
The Bloomsbury Encyclopedia of the American Enlightenment
by
Mark Spencer
The Essentials of Philosophy and Ethics
by
Hodder Arnold