Mullen, J. Hard Thinking. Lanham: Rowman&Littlefield Publishers, 1995 295 p. il. 0-8476-8002-9.
Mullen, J. Hard Thinking. Lanham: Rowman&Littlefield Publishers, 1995 295 p. il. 0-8476-8002-9.
Mullen, J. (1995) Hard Thinking, Lanham: Rowman&Littlefield Publishers 295 p. il. 0-8476-8002-9.
Mullen, J. (1995). Hard Thinking. The Reintroduction of Logic into Everyday Life. Lanham: Rowman&Littlefield Publishers, 295 p. il.
Mullen J. Hard Thinking: The Reintroduction of Logic into Everyday Life. Lanham: Rowman&Littlefield Publishers; 1995. p. 295 p. il. ISBN: 0-8476-8002-9.