Nitrogen fixation with non-legumes :  the third international symposium on.... Helsinki, 2-8 September 1984 / 
edited by F.A. Skinner and P. Uomala. 
 - Dordrecht :  Martinus Nijhoff Publishers,  1986. 
 - 460 p. :  ill. ;  24 cm. 
 - Developments in plant and soil sciences  21 .
<br/><br/><label>ISBN: </label>9024732832 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Micro--organisms, Nitrogen--fixing--Congresses.<br/> Nitrogen--Fixation--Congresses.