00374nam a2200145Ia 450000500170000000800410001703700130005804000200007104100130009108400180010410000150012224500390013726000430017630000090021920250326125550.0250326s9999    xx            000 0 und d  aTextbook  aFMSLbengcFMSL  aeng2eng  aX:51 K7qFMSL  aWalker C J 0aEconomics of marketingcWalker C J  aLondonbLondon, Maconald & Evansc1967  a152p