00730cas|a2200169 i 450000500170000000800410001703500150005810000210007324501050009426001090019930000090030849000230031750000660034065000320040670000190043881001030045720260817163820.0030814s1961    us  uzm rtt  00|  a1eng d  a.b118937711 aLevonian, Edward10aAttitude trends in relation to high school grade and driving experimence /cby ... and Harry W. Case  aBerkeley, Calif. :bInstitute of Transportation and Traffic Engineering, University of California,c1961  a6 p.1 aReprint ;vno. 104  aReprinted from Highway Research Board. Bulletin no. 285, 1961 0aAutomobile driver education1 aCase, Harry W.1 aCalifornia.bUniversity.bInstitute of Transportation and Traffic Engineering.tReprint ;vno. 104