XVI Weltstrassenkongress  Bericht uber die Arbeiten des Kongresses  Report of the Proceedings of the Congress -  compte Rendu des Travaux du congres  Wien 1979  XVle Congres Mondial de la Route 

 - Paris : Association Internationale Permanente des congres de la Route, 1979 
 - 1192p.  ill. 
<br/><br/> Mainly French language 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Roads<br/>Highway engineering<br/>Traffic engineering