Scoones, Ian. <br/><br/>
Policies for soil fertility management in Africa / 
Ian Scoones and Camilla Toulmin. 
 - London :  International Institute for Environment and Development Drylands Progamme,  1999. 
 - 128p ;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>189982541X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil fertility--Africa--Management.