00251nam a2200097Ia 4500008004100000082001400041100002500055245003500080260001800115600002000133241002s9999    xx            000 0 und d  a380.1 OTT  aOtteson, Schuyler F. 0aMarketing The Firm,s Viewpoint  aLondon:c1966  aSocial Sciences