Beaven, P. J. <br/><br/>
The performance of experimental weathered basalt gravel roads in Ethiopia / 
by P.J. Beaven, R. Robinson & Kassaye Aklilu. 
 - Crowthorne, Berkshire :  Overseas Unit, Transport and Road Research Laboratory,  1988. 
 - 26 p. :  ill. 
 - TRRL research report,  147  0266-5247 ; .
 - Transport and Road Research Laboratory research report .
<br/><br/><label>LCCN: </label>90033026 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Roads, Gravel.<br/>Roads--Design and construction--Ethiopia.