Jones, T. E. <br/><br/>
A study of the cost-effectiveness of grading unpaved roads in developing countries/ 
by T.E. Jones and R. Robinson. 
 - Crowthorne, Birks. :  Transport and Road Research Laboratory,  1986. 
 - 11 p. 
 - Research report/  no.91 .
 - Research report (Transport and Road Research Laboratory ;  91. .
<br/><br/><label>LCCN: </label>10250061 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Roads--Design and construction--Developing countries.