Carbon and nutrient dynamics in natural and agricultural tropical ecosystems / 
edited by L. Bersfrom and H. Kirchmann. 
 - New York :  CB International,  1998. 
 - x, 319 p. ;  24 cm. 
<br/><br/>Includes index. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0851992188 
<br/><br/><label>LCCN: </label>9733649  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crops and soils--Congresses.<br/>Soil fertility--Congresses.<br/>Soils--Congresses.<br/>Soils--Nitrogen content--Congresses.