TY  - BOOK
AU  - Jorgensen, Jorgen,
TI  - A treatise of formal logic, its evolution and main branches, with it s relations to mathematics and philosophy
U1  - 160 
PY  - 1962///
CY  - New York
PB  - Ruseell & Russell
KW  - Logic
N1  - 350 sets printed; Includes bibliographical references
ER  -