NITROGEN-15 IN SOIL –PLANT STUDIES 

 - [s.l.]:   IAEA,  1971  
<br/><br/><label>Standard No.: </label>DVE-M5419 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SUELOS<br/>PLANTAS
<br/><br/><label>Universal Decimal Class. No.: </label>631.4