Johnson, R. F. <br/><br/>
Tungsten /  
R.F. Johnson. 
 - Ottawa :    Dept. of Energy, Mines and Resources,    1974. 
 - 8 p. ;    25 cm. 
 - 1974 ;    no. 46 .
<br/><br/><label>Subjects--Topical Terms: </label><br/> Tungsten -- Canada.
<br/><br/><label>Gov. Doc. Class. No.: </label>G CAN E64 (08) 3/51