000			002930000a22001330004500
041			_aEng
080			_aR1 ?-;3
082			_aR1 ?-;3
100			_aRobinson Richard E
245			_aIntroduction to logic.
260			_a _bUniv. of Birth Columbia _c?
650			_aLogic
650			_aPhilosophy
999			_c68825 _d68825