Sustaining the soil :  indigenous soil and water conservation in Africa / 
edited by Chris Reij, Ian Scoones and Camilla Toulmin. 
 - London :  Earthscan,  1996. 
 - xii, 260 p. 
<br/><br/><label>ISBN: </label>185383372X : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil conservation.
<br/><br/><label>LC Class. No.: </label>S625  / .A35S87