Biological nitrogen fixation for the 21st century : proceedings of the 11th international Congress on nitrogen fixation, Institut Pasteur, Paris, France, July 20-25, 1997 

 - Dordrecht ; Boston:  Kluwer Academic Publishers,  1998 
 - xx, 708 p. : ill. ; 25 cm 
<br/><br/><label>ISBN: </label>9780792348344 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen - Fixation - Congresses
<br/><br/><label>Dewey Class. No.: </label>572 .545 ELM