Brooks David B <br/><br/>
Low-grade and moncoventional sources of manganese 

 -  1966 
 - Resources for the Future (Washington), research reports .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technological Industry
<br/><br/><label>Dewey Class. No.: </label>X9(F172).73f.N6, K6