Introduction to logic
New York 1964. 380 S.
The art of making sense. A guide to logical thinking
Philadelphia (Pa.) 1968. 284 S.
Logic, an introduction
Philadelphia (Pa.) 1950. 496 S.
Good thinking. An introduction to logic
Fort Worth (Tex.) 1991. 482 S.
Logical forms. An introduction to philosophical logic
Oxford 1991. 398 S.
Introduction to logic and critical thinking
New York 1984. 339 S.
Introductory symbolic logic without formal proofs
Champaign (Ill.) 1991. 267 S.
The essentials of logic
New York 1925. 369 S.
Beginning philosophical logic
Washington D.C. 1978. 196 S.
Introduction to logic
Needham Heights (Mass.) 1991. 443 S.