Structural and technological change, particularly in the area of sub stitution and reduced usage of tungsten, including related research and development and market promotion. 

 - Geneva :    United Nations Conference on Trade and Development,    1 987. 
 - 30 p. ;    30 cm. 
 - Trade and Development Board. Committee on Tungsten of the Committee on Commodities. Nineteenth session item ;    3 .
<br/><br/><label>Subjects--Topical Terms: </label><br/> Tungsten -- Technological innovations.<br/> Tungsten -- Marketing.