Akasha Mohamed Ali Beshir <br/><br/>
The distribution of water hyacinth ( Eichhornia crassipes ( Mart. ) solms. ) on the Nile system and strategies for its control /  
Akasha Mohamed Ali Beshir ; Supervised M. Obeid Elmubarak , M. Tag Elseed 
 - Khartoum :   Akasha Mohamed Ali Beshir ,   1985 
 - 212Leaves :   charts , photographs ;   30cm 
<br/><br/> Gift from Pro.Dr.Kamal H. Batanouny 
<br/><br/>Thesis (Ph.D.) - Khartoum University - Faculty of Science - Department of Botany