Columbia subject headings:
Corruption--Religious aspects--Islam.
Islamic Empire--History--750-1258.
Political corruption--Islamic Empire--History.
Harvard subject headings:
Corruption--Religious aspects--Islam.
Islamic Empire--History--750-1258
Political corruption--Islamic Empire--History.
Princeton subject headings:
Corruption--Religious aspects--Islam.
Islamic Empire--History--750-1258.
Political corruption--Islamic Empire--History.