Towle, Stewart W. <br/><br/>
World copper smelter sulfur balance-1988 / 
by Stewart W. Towle. 
 - Washington, D.C. :  U.S. Dept. of the Interior, Bureau of Mines,  1993. 
 - 9 p. :  ill. 
 - Information circular ;  9349 .
 - United States.  Bureau of Mines.   Information circular ;  9349 .
 - Information circular (United States. Bureau of Mines) ;  9349 .
<br/><br/><label>LCCN: </label>92044698  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sulfur dioxide--Environmental aspects.<br/>Copper industry and trade--Environmental aspects.<br/>Smelting furnaces--Environmental aspects.