New code environment. 

 - New York  UN           1990 
 - iv,54p.  cm. 
 - UNCTC current studies series A;16 .
<br/><br/><label>ISBN: </label>9211043360 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>XM8:(Z).N90, N/UN