Symbiotic nitrogen fixation in plants / 
edited by P.S. Nutman 
 - Cambridge :  Cambridge University Press,  1976. 
 - xxviii, 584 p :  ill ;  24 cm 
 - International Biological Programme ;  7 .
<br/><br/> Includes index  English text, French, Russian and Spanish contents pages 
<br/><br/><label>ISBN: </label>0521206456 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen--Fixation<br/>Symbiosis
<br/><br/><label>LC Class. No.: </label>QK898.N6