TY  - BOOK
AU  - Cooley,John C.
TI  - A primer of formal logic
AV  - MATH BC71.C6 
PY  - 1947///
CY  - New York
PB  - MacMillan Company
KW  - Logic
KW  - Symbolic and mathematics,
KW  - Mathematics,
KW  - Philosophy
N1  - Includes index
ER  -