Biological nitrogen fixation in farming systems of the Tropics / 
[edited by] A. Ayanaba and P. J. Dart. 
 - Chichester ;  New York :  Wiley,  c1977. 
 - xi, 377 pages :  Illustrations ;  24 cm. 
<br/><br/> "A Wiley-Interscience publication."  "Based on papers presented at a symposium held at the International Institute of Tropical Agriculture, Ibadan, Nigeria, in October 1975." 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0471994995 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Tropics--Congresses.<br/>Cropping systems--Tropics--Congresses.<br/>Nitrogen--Fixation--Congresses.
<br/><br/><label>LC Class. No.: </label>S651  / .B5 
<br/><br/><label>Dewey Class. No.: </label>589/.7/04133