Sayers, Michael W. <br/><br/>
The international road roughness experiment: Establishing correlation and a calibration standard for measurements 
By Michael W. Sayers, Thomas D. Gillespie and Cesar A.V. Queiroz 
 - Washington, D.C.  IBRD  1986 
 - 453p. Paper 
 - World Bank Technical Paper, 45 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Roads
<br/><br/><label>Dewey Class. No.: </label>X6 In8i