000 00334nam a2200109Ia 4500
008 220510s1991 xx 000 0 und d
041 _aeng
082 _a658.8 BER/MAR
100 _aBERRY, LEONARD L. AND PARASURAMAN, A.
_9807029
245 _aMARKETING SERVICES: Competing through quality
260 _aNEW YORK
_b THE FREE PRESS.
_c1991
999 _c557264
_d557264