An introduction to critical thinking
Lincoln (Nebr.) 1948. 663 S.
Valid thinking; an introduction to logic
New York 1962. 388 S.
Introductory symbolic logic
Belmont (Calif.) 1992. 448 S.
Popular fallacies
London 1950. 843 S.
Reasoning and logic
New York 1964. 625 S.
Logic and reality
Assen 1972. 248 S.
The functions and forms of thought
New York 1927. 395 S.
The refutation of determimism. An essay in philosophic logic
New York 1968. 188 S.
Tools of thought. The practical foundations of formal reasoning
Cambridge (Mass.) 1981. 287 S.
Practical logic
New York 1981. 476 S.