United Nations conference one convention on intern 

 - New York  United Nation USA         1981 
 -  V1 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transport Economics -- United Stats
<br/><br/><label>Dewey Class. No.: </label>X4:(B), M1.1-M1.2