Alternative policies for controlling nonpoint agricultural sources of water pollution / 
by W. D. Seitz...[et al.] 
 - Washington :  United States Government Printing Office,  1978 
 - xxiii, 314 p. :  ill. ;  28 cm. 
 - Research and Development .
<br/><br/> EPA-600/5-78-005 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Pollution
<br/><br/><label>Dewey Class. No.: </label>363.7394