Nissen-Petersen, Erik. <br/><br/>
Rain catchment and water supply in rural Africa :  a manual / 
Erik Nissen-Petersen. 
 - London :  Hodder and Stoughton,  1982. 
 - 83 p. 
<br/><br/> Open access. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water conservation--Africa.