The Difnar (Antiphonarium) of the Coptic Church / 3 (Months Beshons, Baounah, Abib, Merre and the intercalary days or Nasi) : from the Vatican Codex copt. Borgia 53 (2); with an app. cont. Hymn fragments preserved in Bristol Museum and Art Gallery / ed. by De Lacy O'Leary - O'Leary, De Lacy (The Difnar (Antiphonarium) of the Coptic Church, 1930)