Ross, Clarence Samuel,  1880- <br/><br/>
Origin of the copper deposits of the Ducktown type in the southern Appalachian region / 
by Clarence S. Ross. 
 - Washington :  U.S. Gov't. Print. Off.,  1935 
 - v, 165 p. :  ill., 44 plates ;  29 cm. 
 - Geological Survey (U.S.). Geological Survey professional paper ;  no. 179 .
 - Geological Survey professional paper ;  no. 179. .
<br/><br/> At head of title:  United States Department of the Interior. 
<br/><br/>Bibliography: p. 3-7. 
<br/><br/><label>LCCN: </label>gs 35000083  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Copper mines and mining--Appalachian Region.<br/>Copper ores--Appalachian Region.
<br/><br/><label>LC Class. No.: </label>TN443.A5  / R6 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.16:179