Butler, G. M.  1881- <br/><br/>
Petroleum, 
by G. M. Butler and J. B. Tenney. 
 - Tucson,  the University of Arizona,  1931. 
 - 50 p. :  tables., diagrs. maps, ;  28 cm. 
 - Oil ser.  no. 5 .
 - University of Arizona.  State Bureau of Mines.  Oil series ;  no. 5. .
 - Bulletin (University of Arizona) ;  v. 2, no. 1. .
<br/><br/> At head of title: University of Arizona bulletin, vol. 2: no. 1, March 1931. 
<br/><br/>Selected bibliography : p. 49-50. 
<br/><br/><label>LCCN: </label>gs 31000253  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum.
<br/><br/><label>LC Class. No.: </label>TN1  / .A65 no. 5, 1931 
<br/><br/><label>Gov. Doc. Class. No.: </label>MN 1.3:B 85/130