TY  - GEN
AU  - Ahmed Salah Eldin Ibrahiem Mohammed Ellzayat
AU  - Ezzat Abd El shafi Hasanien , 
TI  - Comparative study on activated sludge biological treatment systems in some Arab cities / 
PY  - 2003///
CY  - Cairo : 
PB  - Ahmed Salah Eldin Ibrahiem Mohammed Ellzayat , 
KW  - activa ted sludge
KW  - Arab cities
KW  - Biological treatment
N1  - Thesis (M.Sc.) - Cairo University - Faculty Of Engineering - Department Of Civil Engineering; Issued also as CD
UR  - http://172.23.153.220/th.pdf
ER  -