TY - GEN AU - Masse, Benjamin Louis, TI - The church and social progress; : John's Mater et magistra. background readings for Pope AV - HN 37 .C3 M469 PY - 1966/// CY - Milwaukee PB - The bruce publishing company KW - John XXIII, Pope, 1958-1963. Mater et magistra (15 May 1961) N1 - Church and social problems--Catholic Church ER -