Letter of Agatho and of the Roman Synod of 125 Bishops - Translated and edited by Henry R. Percival. Sets out the faith of the Apostolic See, in preparation for the Third Council of Constantinople. From the Nicene and Post-Nicene Fathers of the Christian Church, second series, vol. 14. www.ccel.org/fathers2/NPNF2-14/Npnf2-14-124.htm
Letter to the Emperor - Translated and edited by Henry R. Percival. With notes. From the Nicene and Post-Nicene Fathers of the Christian Church, second series, vol. 14. www.ccel.org/fathers2/NPNF2-14/Npnf2-14-123.htm
