Lapelle, Rolland Rutledge. <br/><br/>
Practical vacuum systems   
by Rolland Rutledge Lapelle. 
 - New York  McGraw-Hill  1972 
 - x, 238p. 
<br/><br/><label>ISBN: </label>0070363552 
<br/><br/><label>Dewey Class. No.: </label>621.55  / N72 R(T)