Report of the Committee on Tungsten on its nineteenth session, held at the Palais des Nations, Geneva, from 9 to 19 November 1987. 

 - New York :    United Nations,    1988. 
 - 23 p. ;    28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Tungsten -- Congresses.