000 00276cam a22000977a 4500
008 180718b1964 xxu||||| |||| 00| 0 eng d
082 _aX 604 x42 Un3
245 _aRoad pricing : The Economic and technical possibilities
_cBy HMSO
260 _aLondon
_bHMSO
_c1964
300 _a61p.
999 _c414455
_d414455