Giller, Ken E., Wilson, Kate J. <br/><br/>
Nitrogen fixation in tropical cropping system 

 - Oxon  C.A.B.International  1991 
 - xii,314p, 22cm 
<br/><br/><label>ISBN: </label>0851986714 
<br/><br/><label>Dewey Class. No.: </label>589.90133,  / D, GIL