Trade information classification 
/ International trade centre UNCTAD/GATT, Geneva 1975 
 - Geneva:   International Trade Centre UNCTAD/GATT,   1975 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information science
<br/><br/><label>Subjects--Index Terms: </label>Classification Reference and funtions 
<br/><br/><label>Universal Decimal Class. No.: </label>D 002:32  / L5