Proceedings 

 - Paris  ECMT            1967 
 - 554p.  cm. 
 - European Conference of Ministry of Transport .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transport Economics
<br/><br/><label>Dewey Class. No.: </label>X4p1,N67, K7