Libbey, Fay Wilmott,  1882- <br/><br/>
Manganese in Oregon, 
by F. W. Libbey, J. E. Allen, Ray C. Treasher [and] H. K. Lancaster. 
 - [Portland, Or.]  1942. 
 - iii, 78 p.  maps.  28 cm. 
 - Oregon. Dept. of Geology and Mineral Industries Bulletin  no. 17 .
 - Oregon.  Department of Geology and Mineral Industries.  Bulletin  no. 17. .
<br/><br/> At head of title: State of Oregon.  Dept. of Geology and Mineral Industries.  Reproduced from type-written copy. 
<br/><br/>Bibliography: p. 73-74. 
<br/><br/><label>LCCN: </label>gs 42000120  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Manganese ores--Oregon.
<br/><br/><label>LC Class. No.: </label>QE155  / .A3 no. 17 
<br/><br/><label>Dewey Class. No.: </label>553.46