TY  - BOOK
AU  - khalil,ibrahim waked
TI  - design of reinforced concrete columns : : according to new egyptian code 1990 / 
U1  - 624.18342/kha 
PY  - 1992///
CY  - Giza
PB  - scientific book house for publishing & distributing
KW  - columns engineering
KW  - concrete coloumns-design
KW  - construction
ER  -