000 00246pam a2200121a 44500
082 _a160
_bP93F2
100 _aPrior, A.N.
245 1 _aFORMAL LOGIC
250 _a2
260 _a
_bClarendon Press
_c1962
964 _gCIRC
997 _a25587 C
999 _c412453
_d412453