Air and gas cleanup equipment 1972 
/ Noyes Data Corporation, 
 - 6th ed.  
 - New Jersey:   Noyes Data Corporation,   1972 
 - 554p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science 
<br/><br/><label>Subjects--Index Terms: </label>Air and gas  
<br/><br/><label>Universal Decimal Class. No.: </label>R 621.733(085)  / L2