TY - GEN AU - Nahla Mohamed Abdelaziz AU - Afaf Abdelmaguid , AU - Refaat Gharib Aboulela , AU - Said Aboulela , TI - Pathological studies on Egyptian cotton leaf worm , spodoptera littoralis infected with entomopathogenic viruses / PY - 1999/// CY - Cairo : PB - Nahla Mohamed Abdelaziz , N1 - Thesis (M.Sc.) - Cairo University - Faculty Of Science - Department Of Entomology ER -