000 00377nam a2200157Ia 4500
008 180710s9999 xx 000 0 und d
020 _a195659
082 _a160
_bLAN
100 _aLANGER, Susanne K.
245 3 _aAn Introduction to symbolic logic
250 _a2nd ed., rev.
260 _aNew York
_bDover pub.
_c1953
300 _a367 p.
650 _aLogic
942 _cS
999 _c56075
_d56075