Udden, Johan August,  1859-1932. <br/><br/>
The geology of the Shafter silver mine district, Presidio County, Texas / 
by J.A. Udden. 
 - Austin :  Von Boeckmann-Jones Company, state printers,  1904. 
 - 60 p., 3 leaves of plates :  ill. ;  25 cm. 
 - University of Texas Mineral Survey. Bulletin ;  no. 8 Bulletin of the University of Texas ;  no. 24. .
<br/><br/><label>LCCN: </label>gs 05000360  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Texas.<br/>Silver mines and mining--Texas.
<br/><br/><label>LC Class. No.: </label>TN24.T4  / A3 no. 8