TY  - BOOK
T1  - What is mathematical logic?
DA  - 1972.
CY  - London,
CY  - New York,
AU  - Crossley, John N.
CN  - QA9 .W47 1972
CN  - QA9
PB  - Oxford University Press,
PP  - London,
PP  - New York,
PY  - 1972.
ID  - 59905
KW  - Logic, Symbolic and mathematical.
TI  - What is mathematical logic?
ER  -