TY  - BOOK
AU  - Wojcicki, Ryszard.
TI  - Lectures on propositional calculi
T2  - The Polish Academy of Sciences institute of Philosophy and Sociology
SN  - 830401775X (pbk.)
U1  - 511.3 
PY  - 1984///
CY  - Ossolineum
PB  - Polish Academy of Science
KW  - Propositional calculus
N1  - Includes index
ER  -