00311nam a2200109Ia 4500008004100000040003800041100001900079245003400098260004100132300001400173653001400187211228s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aWilliam, K M G 0aEconomics of transport policy  bGeorge Allen and UnwinaLondonc1975  ax,390p p.  aEconomics