Richards, Ralph Webster,  1879- <br/><br/>
Geology of the phosphate deposits northeast of Georgetown, Idaho / 
by R.W. Richards and G.R. Mansfield. 
 - Washington,  Govt. Print. Off.,  1914. 
 - 76 p. :  ill., plates (part fold.) fold. maps, diagr. ;  24 cm. 
 - U.S. Geological survey. Bulletin 577 .
 - United States.  Geological Survey.  Bulletin ;  577. .
<br/><br/> Includes index. 
<br/><br/><label>LCCN: </label>gs 14000650  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Phosphates--Idaho
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 577