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Rome and the Arabs: A Prolegomenon to the Study of Byzantium and the Arabs, 1984 •
Byzantium and the Arabs in The Fourth Century, 1984 •
Byzantium and the Arabs in the Fifth Century, 1989 •
Byzantium and the Arabs in the Sixth Century, Volume 1, part 1, 1995 •
Byzantium and the Arabs in the Sixth Century, Volume 1, part 2, 1995 •
Byzantium and the Arabs in the Sixth Century, Volume 2, Part 1, 2002 •
Byzantium and the Arabs in the Sixth Century, Volume 2, Part 2, 2010 •
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Omar Khayyám, the Philosopher-Poet of Medieval Islam, 1982 • ==References==