TY - BOOK AU - Attiyat Abdelrahman Ahmed AU - Asim Ibrahim Elmoghraby , AU - Omer Elbadri , TI - A study on silt deposition in the irrigation canals of nothern Gezira / PY - 1984/// CY - Khartoum : PB - Attiyat Abdelrahman Ahmed , N1 - Gift from Pro.Dr.Kamal H. Batanouny; Thesis (M.Sc.) - Khartoum University - Institute of environmrental studies - Department of Environmental Studies UR - http://172.23.153.220/th.pdf ER -