Keith H. Paustian; Eldor A. Paul; E. T. Elliott; C. Vernon Cole <br/><br/>
Soil Organic Matter in Temperate AgroecosystemsLong Term Experiments in North America 

 -  Taylor and Francis  1996 
<br/><br/><label>ISBN: </label>9780367811693 
<br/><br/><label>Source: </label>EBOOK