Langer, Susanne Katherina Knauth, 1895-1985.
An introduction to symbolic logic. - 2d ed. (rev.) - New York, Dover Publications [1953] - 367 p. illus. 21 cm.
53012389
Logic, Symbolic and mathematical.
BC135 / .L35 1953
164
An introduction to symbolic logic. - 2d ed. (rev.) - New York, Dover Publications [1953] - 367 p. illus. 21 cm.
53012389
Logic, Symbolic and mathematical.
BC135 / .L35 1953
164