Ehab Abbas EL-Baz creator preparation. Mohamd Fayek thesis advisor. Hussien T. Mehana thesis advisor. Naguib S. Guirguis thesis advisor. text theses ua 1995 monographic eng ara 118 Leaves : illustrations ; 30 cm. + specialized By Ehab Abbas EL-Baz; Approved By Prof.Dr. Mohamd Fayek, Prof.Dr. Hussien T. Mehana, Prof.Dr. Naguib S. Guirguis. Thesis (M.Sc.) -Cairo University, 1995. Bibliography: pages 99-118. Pomology EG-GICUC 260510 20260623103253.0 eng