Impurities and imperfections 

 - U S A  American society for measure  1955 
 - 231p. 
<br/><br/> Proceedings of a seminar on held during the 36th national metal congress, chicago, 1955. 
<br/><br/><label>Subjects--Index Terms: </label>Metallurgy  Impurities and imperfections 
<br/><br/><label>Universal Decimal Class. No.: </label>669  / ASM