00305nam a2200109Ia 4500008004100000040002500041082001900066100001900085245007400104260000900178300000800187230627s9999 xx 000 0 und d aNORSU-SiacNORSU-Sia a338.4791 C6853 a3G E- Learning 0a3GE Collection on Tourism: Hospitality, Travel and Tourism Management c2018 a273