Isotope studies on the nitrogen chain  Proceedings 

 - Vienna  IAEA  1968 
 - 343 p. 
 - IAEA, Proceedings Series .
<br/><br/><label>ISBN: </label>NULL 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SOIL CHEMISTRY<br/>SOIL SCIENCE
<br/><br/><label>Dewey Class. No.: </label>631.41  / INT