Janet I. Sprent <br/><br/>
Biological of nitrogen-fixing organisms 

 - London  McGraw Hill Book Company Ltd  1979 
 - 196p 
<br/><br/>Janet I. Sprent: Biological of nitrogen-fixing organisms.  London.  McGraw Hill Book Company Ltd, 1979. 0-07-084087-3--(589.95SPR)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-07-084087-3 
<br/><br/><label>Dewey Class. No.: </label>589.95  / SPR