Sprent, Janet I. <br/><br/>
Biology of anitrogen - fixing orghnisms 

 - London  Mcgraw -Hill  1979 
 - xiv,196p. 
<br/><br/><label>ISBN: </label> USD 29.50 
<br/><br/><label>Source: </label> USD 29.50 
<br/><br/><label>Dewey Class. No.: </label>574.133 SPR