Paul, E.A <br/><br/>
Soil organic matter in temperate agroecosystems  long - term experiments in North America 

 - Boca Raton  CRC Press  1996 
 - 414 p.   
<br/><br/><label>ISBN: </label>0849328020 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>631.417097  / SOI