00439nam a2200169Ia 4500082002000000100001600020245003200036260003300068300001000101500000500111690000600116700000500122952010100127964001700228921000900245999001500254  a510.9bAy976.LT  aAyer, A. J.  aLanguage, truth and logicb  aHarmondsworthbPenguinc1946  a209p.  a  a   a  00104070aISIbISId1998-09-04l0o510.9 Ay976.LTpDP4719r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a8395  c8395d8395