TY  - BOOK
AU  - Rida,Muhammad
TI  - Abu Bakr al-Siddiq: awwal al-khulafa' al-rashidin, 
PY  - 1950///
CY  - al-Qahirah
PB  - Dar Ahya' al-Kutub al-'Arabiyah
KW  - Abu Bakr,
ER  -