Standard International Trade Classification Revision 4 
By the United Nations: Statistical Office 
 - New York  UNITED NATIONS  2006 
 - 91p.: ill. 
 - Statistical Papers .
<br/><br/><label>Subjects--Topical Terms: </label><br/>COMMERCIAL PROJECTS--CLASSIFICATION
<br/><br/><label>LC Class. No.: </label>UN-ESA(08)SP