Nitrogen and carbon metabolism :  proceedings of a symposium on the physiology and biochemistry of plant productivity, held in Calgary, Canada, July 14-17, 1980 / 
edited by J. Derek Bewley. 
 - The Hague :  Martinus Nijhoff,  1981 
 - viii, 248p. 
 - Developments in plant and soil sciences ;  v. 3 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--Carbon content.<br/>Soils--Nitrogen content.