APA-viite (7. p.)
Iglesia católica Papa, Fremantle, A., & Weigel, G. (1959). The papal encyclicals in their historical context. New American Library of World Literature.
Chicago-viite (17. p.)
Iglesia católica Papa, Anne Fremantle, ja Gustave Weigel. The Papal Encyclicals in Their Historical Context. New York: New American Library of World Literature, 1959.
MLA-viite (9. p.)
Iglesia católica Papa, et al. The Papal Encyclicals in Their Historical Context. New American Library of World Literature, 1959.
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