Knechtel, Maxwell M.  1897- <br/><br/>
Geology and coal and natural gas resources of northern Le Flore County, Oklahoma. 

 - Norman,  1949. 
 - 76 p.  illus., 2 fold. maps (in pocket) 5 fold. diagrs. (in pocket)  23 cm. 
<br/><br/> Investigation conducted under cooperative agreement between the Oklahoma Geological Survey and the Geological Survey of the United States Department of the Interior. 
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>LCCN: </label>gs 50000104  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Oklahoma--Le Flore County.<br/>Coal--Oklahoma--Le Flore County.<br/>Natural gas--Oklahoma--Le Flore County.
<br/><br/><label>LC Class. No.: </label>QE153  / .A2 no. 68 
<br/><br/><label>Dewey Class. No.: </label>553.2