Rowe, Robert B. <br/><br/>
Niobium (columbium) deposits of Canada. 

 - Ottawa,  E. Cloutier, Queen's printer,  1958. 
 - vii, 108 p.  illus., maps (part fold. col.) diagrs., tables. 
<br/><br/> Part of illustrative matter in pocket, 
<br/><br/>Bibliography: p. 99-103. 
<br/><br/><label>LCCN: </label>gs 59000027  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Niobium.
<br/><br/><label>LC Class. No.: </label>QE185  / .A4 no. 18