Introduction to mathematical logic
Berlin 1973. 242 S.
Critical thinking. An introduction to informal logic
Newport News (Va.) 1984. 229 S.
An introduction to modal logic
London 1968. 388 S.
A concise introduction to logic
Belmont (Calif.) 1997. 655 S.
Is it really so? A guide to clear thinking
Philadelphia (Pa.) 1976. 160 S.
An introduction to deductive logic
New York 1968. 184 S.
Introduction to logic
Boston (Mass.) 1994. 556 S.
Elementary lessons in logic
London 1946. 340 S.
An introduction to logic
Oxford 1906. 564 S.
An introductory logic
New York 1979. 530 S.