Proceedings of the first IOBC global working group meeting for the biological and integrated control of water hyacinth 16-19 November 1998 St Lucia Park Hotel, Harare, Zimbabwe / 
edited by Martin P. Hill, Mic H. Julien and Ted D. Center. 
 - 1st  ed. 
 - Pretoria, South Africa :  Plant Protection Research Institute,  1999. 
 - vi, 182  p. 
<br/><br/><label>ISBN: </label>062025548x : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water hyacinth--Africa.--Congresses