Twenter, F. R. <br/><br/>
Geology and ground water in Verde valley-the  Mogollon Rim Region Arizona / 
by F. R. Twenter and D. G. Metzger. 
 -- Washington :   United States Government Printing Office,   1963 
 - 132 p. + map. -- 
 (Geological Survey Bulletin, 1177).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arizona<br/>Geología
<br/><br/><label>Universal Decimal Class. No.: </label>55(791)