Nitrogen fixation by free-living micro-organisms / 
edited by W. D. P. Stewart 
 - Cambridge, Eng. :  The University Press,  1975 
 - xxi, 471 p. :  ill. ;  24 cm. 
 - International Biological Programme ;  6 .
<br/><br/> "Papers presented at an IBP synthesis meeting on nitrogen fixation held in Edinburgh in September 1973, together with contributions submitted by other[s]"  Includes bibliographies and index 
<br/><br/><label>ISBN: </label>0521207088 :  PND 13.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen--Fixation--Congresses<br/>Nitrogen-fixing microorganisms--Congresses
<br/><br/><label>Dewey Class. No.: </label>589.7