Cita APA (7a ed.)

Action Populaire & Juan XXIII, P. (1963). Encyclique Pacem in terris. SPES.

Cita Chicago Style (17a ed.)

Action Populaire y Papa Juan XXIII. Encyclique Pacem in Terris. [Paris]: SPES, 1963.

Cita MLA (9a ed.)

Action Populaire y Papa Juan XXIII. Encyclique Pacem in Terris. SPES, 1963.