Cita APA (7a ed.)

Leo XIII, P. C. C. P. (1924). Encyclical Letter on the Condition of Labor. Brooklyn.

Cita Chicago Style (17a ed.)

Leo XIII, Pope; Catholic Church. Pope. Encyclical Letter on the Condition of Labor. Brooklyn, 1924.

Cita MLA (8a ed.)

Leo XIII, Pope; Catholic Church. Pope. Encyclical Letter on the Condition of Labor. Brooklyn, 1924.