00265    a2200109   4500020001500000082001300015100001800028245003300046260003400079300001900113650002300132  a0415018714  a160bSIM  aSimpson, R.L.  aEssentials of symbolic logic  aLondonbRoutledgec1988g1988  aiv,193p.c23cm  aApplied Psychology