00279nam a2200109Ia 4500008004100000040002500041082001300066100002600079245002600105260003000131300000800161230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a 160 B12  a Bachubber, Andrew H. 0aIntroduction to logic  bNational Book Storec1957  a332