Census of motor traffic on main international traf 

 - Geneva  United Nations           1967 
 - vp  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Road Transport Economics
<br/><br/><label>Dewey Class. No.: </label>X413.5.N65s, K7