Catechism of the Catholic Church

862 Abbreviations PG J. P. Migne, ed., Patrologia Graeca (Paris, 1857‑1866) PL J. P. Migne, ed., Patrologia Latina (Paris: 1841‑1855) PLS J. P. Migne, ed., Patrologia Latina Supplement PO Presbyterorum ordinis PP Populorum progressio PT Pacem in terris RBC Rite of Baptism of Children RCIA Rite of Christian Initiation of Adults RH Redemptor hominis RomM Roman Missal RMat Redemptoris Mater RMiss Redemptoris Missio RP Reconciliatio et paenitentia SC Sacrosanctum concilium SCG Summa Contra Gentiles SCh Sources Chrétiennes (Paris: 1942‑ ) SRS Sollicitudo rei socialis STh Summa Theologiae UR Unitatis redintegratio