APA

Catholic Church, . (1962). Mater et magistra: Christianity and social progress; encyclical letter of Pope John XXIII. Glen Rock, N.J: Paulist Press.

Chicago

Catholic Church, . 1962. Mater et magistra: Christianity and social progress; encyclical letter of Pope John XXIII. Glen Rock, N.J: Paulist Press.

Harvard

Catholic Church, . (1962). Mater et magistra: Christianity and social progress; encyclical letter of Pope John XXIII. Glen Rock, N.J: Paulist Press.

MLA

Catholic Church, . Mater et magistra: Christianity and social progress; encyclical letter of Pope John XXIII. Glen Rock, N.J: Paulist Press. 1962.