T.O. ROBSON & H.R. BROAD (ed.) <br/><br/>
STRIGA- IMPROVED MANAGEMENT IN AFRICA 

 - ROME   FAO  1989 
 - 205p. 
<br/><br/><label>ISBN: </label>9251027641 
<br/><br/><label>LC Class. No.: </label>FAO SB 615  / .S74F36 1988