Water hyacinth -- Africa -- Congresses : Water hyacinth in Africa and the Middle East : a survey of problems and solutions / edited by Luis A. Navarro and George Phiri
Water hyacinth -- Biological control -- Congresses. : Biological and integrated control of water hyacinth, Eichhornia crassipes : proceedings of the Second Meeting of the Global Working Group for the Biological and Integrated Control of Water Hyacinth, Beijing, China, 9-12 October 2000 / editors: M.H. Julien ... [and others]
Water hyacinth -- Control -- Congresses : Water hyacinth in Africa and the Middle East : a survey of problems and solutions / edited by Luis A. Navarro and George Phiri
2000
1
8
Water hyacinth -- Integrated control. : Biological and integrated control of water hyacinth, Eichhornia crassipes : proceedings of the Second Meeting of the Global Working Group for the Biological and Integrated Control of Water Hyacinth, Beijing, China, 9-12 October 2000 / editors: M.H. Julien ... [and others]
2001
1
9
Water hyacinth -- Integrated control -- Congresses. : Biological and integrated control of water hyacinth, Eichhornia crassipes : proceedings of the Second Meeting of the Global Working Group for the Biological and Integrated Control of Water Hyacinth, Beijing, China, 9-12 October 2000 / editors: M.H. Julien ... [and others]
2001
1
10
Water hyacinth -- Middle East -- Congresses : Water hyacinth in Africa and the Middle East : a survey of problems and solutions / edited by Luis A. Navarro and George Phiri
