Abdalla Mohamed Elzubeir <br/><br/>
The environmental consequencies of open grazing system in dar rizeingat with special reference to Abumatariq popular people council /  
Abdalla Mohamed Elzubeir ; Supervised M. H. Abusin , M. M. Suliman 
 - Khartoum :   Abdalla Mohamed Elzubeir ,   1984 
 - 257P. :   charts , maps ;   30cm 
<br/><br/> Gift from Pro.Dr.Kamal H. Batanouny 
<br/><br/>Thesis (M.Sc.) - Khartoum University - Faculty of Agriculture - Department of Environmental Studies