Hawley, C. C.  1929- <br/><br/>
Geology and Beryllium deposits of the lake George (or Badger flats) Beryllium area, park and Jefferson counties, Colorado / 
by C. C. Hawley. 
 -- Washington :   United States Government Printing Office,   1969 
 - 44 p. + map. -- 
 (Geological Survey Professional Paper  ;  608-A).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Berilio<br/>Colorado<br/>Depósitos de minerales
<br/><br/><label>Universal Decimal Class. No.: </label>553.684(788)