000 003530000a22001570004500
245 _aLogic
100 _aEarle, Nick
260 _aLondon
_bMacmillan
_c1973
300 _a139p.
440 _aIntroductory Monographs in Mathematics
500 _aIndex included
020 _a333113446
080 _a510.6
_bE2
041 _aEN
942 _cBK
_011
999 _c63199
_d63199