Nitrogen fixation with non-legumes :  proceedings of the 4th International Symposium on Nitrogen Fixation with non-lebumes, Rio de Janeiro, Brazil, 23-28 August 1987 / 
edited by F.A. Skinner, R.M. Boddy and I. Fendrik. 
 - Dordrecht :  Kluwer Academic Publishers,  1989. 
 - 336p. :  ill. ;  27cm. 
 - Developments in plant ans soil sciences  vol.35 .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0792300599 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Nitrogen--Fixation--Congresses.