00396nam a22001457i 4500001001000000005001700010008004100027082001900068100002600087245004800113250001000161260005200171300001700223650001000240SXC00116120260819093311.0260101s1962    ii            000 0 eng d  a160 WEL-I4222  aWelton, James, et al.10aIntermediate logic /cWelton, James, et al.  a4 ed.  abUniversity Tutorial Press Ltd., London,c1962  ap. ;c22 cm. 0aLogic