TY  - BOOK
AU  - Exner,Robert M., Rosskope, Myron F.
AU  - x
TI  - Logic in elementary mantematics: x
SN  - x
U1  - 510/EXL 
PY  - 1959///
CY  - N.Y.
PB  - McGraw-Hill
KW  - Mathematics
N1  - x
ER  -