Catholic Church. Pope (1958-1963 : John XXIII), Campion, D. R., & Culhane, E. K. (1961). Mater et magistra: Christianity and social progress ; an encyclical letter of Pope John XXIII. The America Press.
Chicago-Zitierstil (17. Ausg.)Catholic Church. Pope (1958-1963 : John XXIII), Donald R. Campion, und Eugene K. Culhane. Mater Et Magistra: Christianity and Social Progress ; an Encyclical Letter of Pope John XXIII. New York: The America Press, 1961.
MLA-Zitierstil (8. Ausg.)Catholic Church. Pope (1958-1963 : John XXIII), et al. Mater Et Magistra: Christianity and Social Progress ; an Encyclical Letter of Pope John XXIII. The America Press, 1961.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.