Jenkins, Olaf Pitt,  1889- <br/><br/>
A geological reconnaissance of the Tucson and Amole mountains 
by Olaf P. Jenkins and Eldred D. Wilson, with notes on the southern section of the Amole mining district, by Milton A. Allen. 
 - Tucson, Ariz.,  Arizona bureau of mines,  1920. 
 - 25 p.  illus.,  23 cm. 
 - Geological series,  no. 2 .
 - University of Arizona.  State Bureau of Mines.  Geological series ;  no. 2. .
<br/><br/> At head of title: University of Arizona bulletin. 
<br/><br/><label>LCCN: </label>gs 21000157  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Arizona.
<br/><br/><label>LC Class. No.: </label>QE85  / .J4 
<br/><br/><label>Gov. Doc. Class. No.: </label>MN 1.3:B 85/106