Zirconium and hafnium 
At head of title  Annual report  Annual report.  Zirconium and hafnium 
U.S. Department of the Interior, Bureau of Mines. 
 - Washington, DC  The Bureau  1992- 
 - v.  28 cm. 
 - 
 - 1990- 
<br/><br/> Title from cover. 
<br/><br/>
<br/><br/><label>Source: </label>Supt. of Docs., U.S. Govt. Print. Off., Washington, D.C. 20402 
<br/><br/><label>LCCN: </label>sn 92026166  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zirconium industry--Statistics--Periodicals.--United States<br/>Hafnium--Statistics--Periodicals.<br/>Zirconium--Statistics--Periodicals.
<br/><br/><label>LC Class. No.: </label>HD9539.Z65  / Z57 
<br/><br/><label>GPO Item No.: </label>0639-F-01 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 28.37/A:Z 68/