SCHNUG, Ewald. <br/><br/>
Sulphur in Agroecosystems. 

 - Dordrecht.  Kluwer Academic Publishers.  1998 
 - vii, 221p. 
<br/><br/><label>ISBN: </label>0 7923 5123 1 
<br/><br/><label>Dewey Class. No.: </label>577.14