1983 world survey of current research and development on roads and road transport / 
 World survey of current research and development on roads and road transport 
Prepared by federal highway administration under contract no. difh 61-81-c00023 
 - 862 páginas 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Estados Unidos. Federal Highway Administration 
<br/><br/><label>LC Class. No.: </label>TE192  / F43