00473nam a2200097Ia 4500008004100000050002100041100002300062245009900085247011600184264007500300230508s1971    xx            000 0 und d  aBC 108 M125 19711 aMcCall, Raymond J.10aBasic logic : bthe fundamental principles of formal deductive reasoning /cMcCall, Raymond J.  aBasic logic : the fundamental principles of formal deductive reasoning_BC 108 M125 1971_McCall, Raymond J._1971  a[Place of publication not identified] : bNational Book Store, c1971.