- Some early Judaeo-Christian documents in the John Rylands library;
- An Ancient Syriac Translation of the Kur'an Exhibiting New Verses and Variants
- Commentary of Theodore of Mopsuestia on the Nicene Creed
- Commentary of Theodore of Mopsuestia on the Lord's Prayer and on the Sacraments of Baptism and the Eucharist (Woodbrooke Studies)
- The Early Spread of Christianity in Central Asia and the Far East