Our rock riches; 
a selected collection of reprinted articles on Michigan's mineral resources by various authors. 
 - Lansing, Mich.,  1964. 
 - vii, 109 p.  illus.  23 cm. 
 - Bulletin ;  1 .
 - Bulletin (Michigan. Geological Survey Division) ;  1. .
<br/><br/><label>LCCN: </label>65063047 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources--Michigan.
<br/><br/><label>LC Class. No.: </label>QE125  / .A37 no. 1