Survey and evolution of fine bubble bomb diffuser aeration equipment / 
D.H. Houck and A.G. Boon 
 - Washington, D.C. :  United State Government Printers Office,  1981 
 - 8 p. ;  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Military art and science--United States
<br/><br/><label>Dewey Class. No.: </label>355.00973