TY  - BOOK
AU  - Leonard,Henry Siggins,1905-1967
TI  - Principles of reasoning: an introduction to logic, methodology and the theory of signs
PY  - 1967///
CY  - New York
PB  - Dover Pub. Inc.
KW  - Logic
KW  - Semantics (Philosophy)
N1  - 'Revised version of the work originally published ... in 1957 under the title Principles of right reason.'
ER  -