Title: The Times Codeword 2: 150 cracking logic puzzles (The Times Puzzle Books), Author: The Times Mind Games
Title: The Collected Papers of Bertrand Russell, Volume 6: Logical and Philosophical Papers 1909-13 / Edition 1, Author: John Slater
Title: Psychologism: The Sociology of Philosophical Knowledge / Edition 1, Author: Martin Kusch
Title: Logic and Language in Wittgenstein's Tractatus / Edition 1, Author: Ian Proops
Title: Coping with the Human Predicament - Living an Examined, a Disciplined and a Charitable Life, Author: Douglas Patterson