Dunlap, William J. <br/><br/>
Subsurface biological activity in relation to ground water pollution / 1973 
by William J. Dunlap and James F. McNabb 
 - Washington, D.C. :  United States Environmental Protection Agency,  1973 
 - v, 60 p. :  ill.,  29 cm. 
 - Environmental protection technology series .
<br/><br/> EPA-660/2-73-014 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Groundwater<br/>Pollution
<br/><br/><label>Dewey Class. No.: </label>628.114