Yancey, H. F.  1890- <br/><br/>
Analyses and other properties of Oregon coals as related to their utilization, 
by H. F. Yancey and M. R. Geer. 
 - [Portland,  1940] 
 - iv, 38 p.  illus.  28 cm. 
 - Oregon. State Dept. of Geology and Mineral Industries. Bulletin  no. 20 .
<br/><br/> At head of title: State of Oregon. Department of Geology and Mineral Industries. In cooperation with the Bureau of Mines, United States Department of the Interior.  Photoprinted. 
<br/><br/>Bibliographical foot-notes. 
<br/><br/><label>LCCN: </label>gs 40000154  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal--Analysis.<br/>Coal--Oregon.
<br/><br/><label>LC Class. No.: </label>QE155  / .A3 no. 20 
<br/><br/><label>Dewey Class. No.: </label>285 s  B no. 20