Nitrogen management and ground water protection / 

 - Amsterdam ;  New York :  Elsevier,  1989. 
 - xv, 395 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0444873937 (U.S.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen fertilizers<br/>Groundwater<br/>Water quality management.<br/>Nitrogen in agriculture.
<br/><br/><label>Dewey Class. No.: </label>628 ELS 1989 A052 Or.