00446nam a2200121 a 450008200290000024500920002926000380012130000260015952600370018565000340022265000500025671000180030600a625.725bSALcL-18,P-13800aHighway design and construction /cKingdom of Saudi Arabia, Ministry of Communications.  aLondonbMacmillan Educationc1979  ax. 284p.billc24 cm.  a0b0c0d625_725000000000000_SAL 0aRoad materialszSaudi Arabia. 0aRoadszSaudi ArabiaxDesign and construction.1 aSaudi Arabia.