Barker, Fred <br/><br/>
Gold Investigations in Precambrian Clastic and pelitic Rocks, Southwestern Colorado and Northern New Mexico / 
By Fred Barker. 
 -- Washington :   United States Government Printing Office,   1969 
 - 22 p. -- 
 (Geological Survey Bulletin  ;  1272-F).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nuevo Mexico<br/>Precambrico<br/>Rocas
<br/><br/><label>Universal Decimal Class. No.: </label>552.2(789)