Janet I Sprent <br/><br/>
Ecology of the nitrogen cycle 

 - Cambridge  Cambridge University Press  1987 
 - 151p 
<br/><br/>Janet I Sprent: Ecology of the nitrogen cycle.  Cambridge.  Cambridge University Press, 1987. 0-521-31050-0--(574.522SPR)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-521-31050-0 
<br/><br/><label>Dewey Class. No.: </label>574.522  / SPR