Killin, A.F. <br/><br/>
Sodium sulphate /  
A.F. Killin. 
 - Ottawa :    Dept. of Energy, Mines and Resources,    1976. 
 - 7 p. ;    25 cm. 
 - 1976 ;    no. 43 .
<br/><br/><label>Subjects--Topical Terms: </label><br/> Selenium.<br/> Tellurium -- Canada.
<br/><br/><label>Gov. Doc. Class. No.: </label>G CAN E64 (08) 3/43