Hess, Frank Lee,  1871-1955. <br/><br/>
Colorado ferberite and the wolframite series, 
by Frank L. Hess and Waldemar T. Schaller. 
 - Washington,  Govt. print. off.,  1914. 
 - 75 p.  XIV pl. on 7 l., diagrs.  23 cm. 
 - U.S. Geological survey.  Bulletin 583 .
<br/><br/>Bibliography: p. 74-75. 
<br/><br/><label>LCCN: </label>gs 14000757  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ferberite.<br/>Wolframite group.
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 583