Donovan,W. Graeme. <br/><br/>
Soil fertility management in Sub-Saharan Africa / 
Graeme, Donovan, Frank Casey. 
 - Washington, DC :  World Bank,  1998. 
 - vii, 60 p. ;  28 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0821342363 
<br/><br/><label>LCCN: </label>9824350  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil fertility--Africa, Sub-Saharan--Management.