00299nam a2200109Ia 4500008004100000022001800041040002500059082002400084100002400108245003000132260002700162240215s9999    xx            000 0 und d  a0-03-033078-5  aNORSU-DumcNORSU-Dum  aGR/658.403072/Z6/c7  aZikmund, William G. 0aBusiness Research Methods  bThe Dryden Pressc1991