Knopf, Adolph,  1882- <br/><br/>
The Sitka mining district, Alaska, 
by Adolph Knopf. 
 - Washington,  Govt. print. off.,  1912. 
 - 32 p.  illus., fold. map.  23 cm. 
 - United States. Geological survey. Bulletin 504 .
<br/><br/><label>LCCN: </label>gs 12000077  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources--Alaska.<br/>Geology, Economic--Alaska.
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 504