Wells, John D.  1946- <br/><br/>
Stratigraphy and structure of the house rock Valley area Coconino county, Arizona / 
by John D. Wells. 
 -- Washington :   United States Government Printing Office,   1960 
 - P. 117-158 + map. -- 
 (Geological Survey Bulletin  ;  1081-D).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arizona<br/>Estratigrafía
<br/><br/><label>Universal Decimal Class. No.: </label>551.7(791)