TY - BOOK AU - Ahmed Tewfik Saad Dobal, AU - Mohamed Tarik Labib AU - Adel Saad EL- Hassanin AU - Mohamed Abdel Naeem TI - Studies On The Retention Of Some Pollutants Added To Certain African Soils In Irrigation Water PY - 1996/// KW - Natural Resources N1 - Thesis (Ph.D)-Cairo University, 1996; Bibliography: pages 160-178. ER -