Drewes, Harald  1927-2015 <br/><br/>
Mesozoic stratigraphy of the Santa Rita Mountains, Southeast of Tucson, Arizona / 
by Harald Drewes. 
 -- Washington :   United States Government Printing Office,   1971 
 - 81 p. -- 
 (Geological Survey Professional Paper  ;  658-C).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arizona<br/>Estratigrafía<br/>Mesozoico
<br/><br/><label>Universal Decimal Class. No.: </label>551.76(791)