Yarwood, John. <br/><br/>
High vacuum technique;  theory, practice, industrial applications and properties of materials, 
by J. Yarwood ... 
 - 2d ed., rev. 
 - London,  Chapman & Hall ltd.,  1945. 
 - viii, 140 p.  illus., diagrs.  22 cm. 
<br/><br/> "First published, 1943." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>VACÍO<br/>BOMBAS DE VACÍO
<br/><br/><label>Universal Decimal Class. No.: </label>621.52