Note 261 — Chapter I · - ATTITUDE OF THE CHURCH TOWARDS HERESY PRIOR TO THE INSTITUTION OF THE INQUISITION
Reading edition
J. D. Mansi, Sacrorum Conciliorum nova et amplissima Collectio (Paris, 1901-13), vol. xxi, p. 718, and Frédéricq, Corpus, vol. i, No. 31.