00335pab a2200109 454500008004000000100002200040245008300062260000900145300001400154650001000168773004700178180718b2007   xxu||||| |||| 00| 0 eng d  aMarra, Alessandro  aInternal regulation by mixed enterprises: the case of the Italian water sector  c2007  ap.245-75.  aWater  aAnnals of Public and Cooperative Economics