00371nam a2200169Ia 4500008004000000041000800040082001100048100001500059245002600074260004400100300001300144440000600157650001000163650000700173650001100180650001000191210210b1910   xxu||||| |||| 00| 0 eng d  aeng  a160/94  aWELTON (J)  aManual of logic Vol.2  aLondonbUniversity Tutorial Pressc1910  axiii,328  a2  aVol.2  aof  aManual  alogic