TY  - BOOK
AU  - Kreyche,Robert J.
TI  - Logic for undergraduates /Robert J. Kreyche
AV  - BC108 .L645 1970
PY  - 1970///
CY  - New York
PB  - Holt, Rinehart and Winston
KW  - Logic
N1  - 4; Bibliography: pages 217.-219; 2
ER  -