A report covering an international survey of current research and development on roads and road transport / 
 1977 i.e. nineteen seventy-seven! world survery of current research and development on roads and road transport 
International road federation 
 - 744 páginas 
<br/><br/> Titulo de la cubierta: 1977 world survey of current research and development on roads and road transport 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Carreteras<br/>Transporte motorizado
<br/><br/><label>LC Class. No.: </label>TE1  / F42 1977