1. Land behind Baghdad: A History of Settlement on the Divala lains, Chicago and London;Adams,1965
2. La Geographie de l'Irrigation dans le Tamilnad, Paris;Adiceam,1966
3. Heartland of Cities: Surveys of Ancient Settlements and Land Use on the Central Floodplains of the Euphrates, Chicago and London;Adams,1981
4. Kitab Futuh al-Buldan;Baladhuri,1866
5. The Origins of the Islamic State, London;Hitti,1916