Hayes, P. C. <br/><br/>
Process selection in extractive metallurgy / 
by P.C. Hayes ; with contributions from P.M.J. Gray ... [et al.]. 
 - Brisbane :  Hayes Publishing,  1985. 
 - x, 406 p. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Metallurgy
<br/><br/><label>Dewey Class. No.: </label>669  / H418