TY  - BOOK
AU  - Lorenzen Paul
TI  - Formal logic. Translated from German by Frederick
T2  - Synthese Library : A series
U1  - R1, K5 
PY  - 1965///
CY  - Holland
PB  - D. Reidel Publishing        
KW  - Philosophy-Logic
N1  - Bibliography: P 117-18
ER  -