Methods for evaluating nitrogen fixation by nodulated legumes in the field  (Book) 

 - Canberra  Australian Centre for International Agricultural Research  1989 
 - 76p.  24 cm. 
<br/><br/><label>ISBN: </label>0949511900 
<br/><br/><label>Universal Decimal Class. No.: </label>631.413.2 MET  / 7589