Nitrogen isotope techniques / 
edited by Roger Knowles, T. Henry Blackburn 
 - xii, 311 p. :  il. ;  24 cm. 
 - Isotopic techniques in plant, soil, and aquatic biology. .
<br/><br/><label>ISBN: </label>0124169651 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CICLO DEL NITROGENO--INVESTIGACIONES<br/>CICLO DEL NITROGENO--METODOLOGIA<br/>ESPECTROMETRIA DE MASAS<br/>FIJACION DEL NITROGENO--INVESTIGACIONES<br/>ISOTOPOS--ANALISIS
<br/><br/><label>Dewey Class. No.: </label>581.19214  / N57 1993