Boericke, William Fay,  1884- <br/><br/>
Prospecting and operating small gold placers / 
by William F. Boericke 
 - 2nd ed 
 - New York :  John Wiley & Sons,  1936 
 - xi, 145p. ill. 20cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0471085146 
<br/><br/><label>LCCN: </label>36-18514 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gold mines and mining