00266nam a2200109Ia 4500008004100000040002500041082001600066100001800082245003900100260000900139300000800148230627s9999 xx 000 0 und d aNORSU-SiacNORSU-Sia a302.2 P9859 a3G E-Learning 0aPurposive Communication (with DVD) c2018 a184