Directions of imformational trade    monthly April 1959.    

 - New York  United Nations          1959 
 - 91p  cm. 
<br/><br/> Statistical papers series T 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:54.1.N59s, J9