Buresh, Roland J. <br/><br/>
Replenishing soil fertility in Africa :  proceedings of an international symposium 
ed. /by Roland J. Buresh, Pedro A. Sánchez and Frank Calhoun 
 - Madison :  Soil Science Society of America,  1997. 
 - 251 p. ;  gráfs. 
<br/><br/><label>LCCN: </label>85753 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos--Fertilidad.<br/>Suelos--Africa.
<br/><br/><label>Dewey Class. No.: </label>631.4  / B83