Donald R. Nielson <br/><br/>
Nitrogen in the environment. Vol 1 Nitrogen behavior in field soil  

 - New York  Academic Press  1978 
 - 526p 
 -  Vol - I .
<br/><br/>Donald R. Nielson & J. G. MacDonald: Nitrogen in the environment. Vol 1 Nitrogen behavior in field soil.  New York.  Academic Press, 1978. 0-12-518401-8--(589.95NIE)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-12-518401-8 
<br/><br/><label>Dewey Class. No.: </label>589.95  / NIE