McKnight, Edwin Thor,  1902- <br/><br/>
Zinc and lead deposits of Northern Arkansas / 
Edwin T. McKnight.  Prepared in cooperation with the Arkansas Geological Survey, George C/ Branner, state geologist. 
 - Washington :  U.S. Govt. Print. Off.,  1935. 
 - vi, 311 p. :  incl. tables, diagrs. 1l pl., on 9 l. (included folded maps in pocket) fold. tab. ;  23 cm. 
<br/><br/> At head of title: United States Department of the Interior. 
<br/><br/>Bibliographical foot-notes. 
<br/><br/><label>LCCN: </label>gs 36000004  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lead ores--Arkansas.<br/>Zinc ores--Arkansas.
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 853