00330nam a2200121Ia 4500020001100000082001900011100002500030245010300055260002600158300001400184500000500198700000500203  a055562  a338.6bP558.ER  aPhillips, C. F., Jr.  aEconomics of regulation; theory and practice in the transportation and public utility industriesb  aIllinoisbIrwinc1969  axv, 774p.  a  a