TY  - BOOK
AU  - Robison,Gerson B.
TI  - An introduction to mathematical logic
AV  - QA9 .R72
U1  - 164 
PY  - 1969///]
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Logic, Symbolic and mathematical
KW  - Local
ER  -