Bergersen, F. J. <br/><br/>
Methods for evaluating biological nitrogen fixation 

 - New York :  Wiley,  1980 
 - 702 p. 
<br/><br/><label>LCCN: </label>14918 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bacterias nitrificantes.<br/>Nitrógeno--Fijación.
<br/><br/><label>Dewey Class. No.: </label>631.46  / B4