TY  - BOOK
AU  - Crossley,John N....[et al]
TI  - What is mathematical logic?
T2  - Oxford paperbacks University Series (OPUS)
SN  - 0198880871 (pbk.)
U1  - 511.3 23
PY  - 1972///
CY  - London
PB  - Oxford University Press
KW  - Logic, Symbolic and mathematical
N1  - Bibliography: p.79
ER  -