TY  - BOOK
AU  - Raana,Irfan Mahmud
TI  - Y Economic system under Umar the Great
PY  - 1977///
CY  - Lahore
PB  - Sh. Muhammad Ashraf
KW  - Islamic Empire
KW  - Economic conditions
N1  - Includes index; ( A treatise on Muslim Economy in Early Seventh Century ); p.155-157
ER  -