TY  - BOOK
AU  - Lukasiewicz Jan
AU  - Wojtasiewicz Olgierd
TI  - Elements of mathematical logic
U1  - 164 
PY  - 1963///
CY  - London
PB  - Pergamon Press
KW  - Mathematical logic
KW  - Symbolic logic
N1  - Translated form Polish
ER  -