TY  - BOOK
AU  - Tritton, A S
AU  - Tritton,A S
TI  - Caliphs and Their Non-Muslim Subjects:  Critical Study of the Covenant of Um
U1  - 305.608097 
PY  - 1930///
CY  - London
PB  - Oxford University Press 
KW  - Islam-Relations Other Religions
N1  - includes index and biblioraphy; Index
ER  -