Roger Knowles <br/><br/>
Nitrogen isotope techniques 

 - London  Academic Press Inc  1993 
 - 311p 
<br/><br/>Roger Knowles & T. Henry Blackburn: Nitrogen isotope techniques.  London.  Academic Press Inc, 1993. 0-12-416965-1--(589.95KNO)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-12-416965-1 
<br/><br/><label>Dewey Class. No.: </label>589.95  / KNO