00824nam0-22002771i-450-99000210311040332120060404122125.0000210311FED01000210311(Aleph)000210311FED0100021031120030910d1991----km-y0itay50------baengGB<<The >>economic theory of product differentiationJohn Beath, Yannis KatsoulacosCambridgeCambridge University Press1991204 p.24 cmBeath,John88875Katsoulacos,Y. S.<1953- >ITUNINARICAUNIMARCBK99000210311040332162 339.13 BEADEPA 6512DAGEADAGEAEconomic theory of product differentiation394603UNINA