Sprent, Janet I <br/><br/>
The biology of nitrogen-fixing organisms / 
Janet I. Sprent 
 - London :  McGraw-Hill,  1979 
 - 196 p. :  ill. ;  24 cm. 
 - European plant biology series .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0070840873  10.00 0070840881 (pbk.) 
<br/><br/><label>LCCN: </label>78-040897 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen-fixing microorganisms<br/>Nitrogen--Fixation