Sims, Paul Kibler  1918-2011 <br/><br/>
Geology of precambrian rocks central city district Colorado / 
by P. K. Sims and D. J. Gable. 
 -- Washington :   United States Government Printing Office,   1964 
 - 52 p. + map. -- 
 (Geological Survey Professional Paper  ;  474-C).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Colorado<br/>Estratigrafía<br/>Precámbrico
<br/><br/><label>Universal Decimal Class. No.: </label>551.71/.72(788)