APA (7th ed.) Citation

Iglesia Católica, Juan XXIII, P., & Gibbons, W. J. (1962). Mater et magistra: Encyclical letter of his holiness Pope John XXIII, Christianity and social progress (Study club ed.). Paulist Press.

Chicago Style (17th ed.) Citation

Iglesia Católica, Papa Juan XXIII, and William Joseph Gibbons. Mater Et Magistra: Encyclical Letter of His Holiness Pope John XXIII, Christianity and Social Progress. Study club ed. Glen Rock, NJ: Paulist Press, 1962.

MLA (9th ed.) Citation

Iglesia Católica, et al. Mater Et Magistra: Encyclical Letter of His Holiness Pope John XXIII, Christianity and Social Progress. Study club ed. Paulist Press, 1962.