Yarwood, John. <br/><br/>
High vacuum technique :  theory, practice, industrial applications, and properties of materials / 
John Yarwood.  
 - 3rd ed. 
 - London :  Chapman & Hall,  1955 [Reprinted 1961] 
 - viii, 208 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vacuum pumps.<br/>Vacuum
<br/><br/><label>Dewey Class. No.: </label>621.55  / YAH 1961