Boron steels :  production and use. 

 - 140 pages :  illustrations ;  24 cm 
<br/><br/> "Technical Assistance Mission No.124" 
<br/><br/><label>LCCN: </label>54003044 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Boron steel
<br/><br/><label>LC Class. No.: </label>TN757.B6  / B67 1954