Gilpin, Joseph Elliott,  1866- <br/><br/>
The diffusion of crude petroleum through fuller's earth with notes on its geologic significance, / 
by J. Elliott Gilpin and Oscar E. Bransky. 
 - Washington,  Govt. Print. Off.,  1911. 
 - 50 p. :  ill. ;  24 cm. 
 - U.S. Geological survey. Bulletin 475 .
 - United States.  Geological Survey.  Bulletin ;  475. .
<br/><br/><label>LCCN: </label>gs 11000453  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum engineering.<br/>Fuller's earth.
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 475