Worcester, Philip G.  1884- <br/><br/>
The geology of the Ward region, Boulder County, Colorado, 
by P. G. Worcester. 
 - Denver,  Eames bros., state printers  [1920] 
 - 74 p.  2 fold. maps (in pocket)  23 cm. 
<br/><br/>Bibliography: p. 72. 
<br/><br/><label>LCCN: </label>gs 21000252  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Colorado--Boulder County.
<br/><br/><label>LC Class. No.: </label>QE91  / .A4 no. 21