APA (7e ed.) Bronvermelding
Iglesia Católica. Papa (1878-1903 : León XIII) & I. Campion, D. R. Mater et Magistra christianity and social progress an encyclical letter of Pope John XIII / edited by Donald R. Campion, S.J. and Eugene K. Culhane, S.J.
Chicago (17e ed.) Bronvermelding
Iglesia Católica. Papa (1878-1903 : León XIII) en Donald R. I. Campion. Mater Et Magistra Christianity and Social Progress an Encyclical Letter of Pope John XIII / Edited by Donald R. Campion, S.J. and Eugene K. Culhane, S.J.
MLA (9e ed.) Bronvermelding
Iglesia Católica. Papa (1878-1903 : León XIII) en Donald R. I. Campion. Mater Et Magistra Christianity and Social Progress an Encyclical Letter of Pope John XIII / Edited by Donald R. Campion, S.J. and Eugene K. Culhane, S.J.
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