Jnanananda, Swami <br/><br/>
High vacua.   Principiples, production, and measurement 
Swami Jnanananda  
 - Toronto :   New York :   London :   D. Van Nostrand Company,   1947. 
 - 310 p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>BOMBAS DE VACIO
<br/><br/><label>Universal Decimal Class. No.: </label>621.52