TY - GEN AU - Effat Ali Ahmed Elewa AU - Mahmoud Mohamed Amr , AU - Mohamed Helmy Belal , AU - Zaghloul Elshahat Kandil , TI - A studies on environmental pollution with pesticdes and heavy metals / PY - 1999/// CY - Cairo : PB - Effat Ali Ahmed Elewa , KW - belonging KW - improving yield potential KW - tomato on some rootstocks N1 - Thesis (Ph.D.) - Cairo University - Faculty Of Science - Department Of Organic Chemistry ER -