Yarwood, J <br/><br/>
High vaccum technique:  Theory, practice and properties of materials 

 - 4th ed. 
 - London  Chapman and Hall  1967 
 -  x,274p.(Science paperbacks) 
<br/><br/><label>Subjects--Index Terms: </label>Vaccum tubes 
<br/><br/><label>Universal Decimal Class. No.: </label>533.5  / YAR:1