The biology of nitrogen fixation / 
edited by A. Quispel 
 - Amsterdam :  North-Holland Publishing Company,  1974 
 - x, 769 p. :  ill. ;  25 cm. 
 - Frontiers of biology ;  v.33 .
<br/><br/><label>ISBN: </label>0720471354 
<br/><br/><label>LCCN: </label>73-090562 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen--Fixation