000 00291cam a22001097a 4500
008 180718b1968 xxu||||| |||| 00| 0 eng d
082 _aX604 x42 Un3
245 _aRoad track costs
_cBy HMSO
260 _aLondon
_bHMSO
_c1968
300 _a121p.
500 _aA report by the ministry of transport
999 _c414452
_d414452