Ultra high school vacuum techniques / 
edited by D. K. Avasthi, A. Tripathi and A. C. Gupta 
 - Kolkata :  Allied Pub.,  2002 
 - 224 p. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vacuum technology<br/>Vacuum technology--History
<br/><br/><label>Dewey Class. No.: </label>530.12