Control of Africa's floating water weeds  proceedings of a workshop held in Zimbabwe,June 1991 

 - CSC  London  1993 
 - 187p. 
 - Aquatic Weeds Water Hyacinth Biological Control Herbicides 
<br/><br/>Greathead, A.  Greathead, A. Groot, Peter de  Groot, Peter de 
<br/><br/><label>Nat. Bib. No.: </label>5252 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>582.53CON 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological Sciences
<br/><br/><label>Universal Decimal Class. No.: </label>582.53