Hernandez, Donald J. <br/><br/>
Energy consumption of advanced wastewater treatment at ely, Minnesota :  interagency enery-environment research and development program report / 
by Donald J. Hernandez 
 - Washington, D.C. :  United States Government Printing Office,  1978 
 - 20 p. ;  29 cm. 
<br/><br/> EPA-600/7-76-001 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Combined sewers<br/>Sewage disposal
<br/><br/><label>Dewey Class. No.: </label>363.72846