Control of Africa's floating water weeds 
Commonwealth Science Council 
 - London:   Commonwealth Science Council  1993 
 - 187p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Subjects--Index Terms: </label>Water weeds Water hyacinth 
<br/><br/><label>Universal Decimal Class. No.: </label>632.51(6)(082.2)   / N3