Cita APA (7th ed.)

Gilson, E. (1957). The church speaks to the modern world The social teachings of Leo XIII (4ª ed.). Image Books.

Cita Chicago (17th ed.)

Gilson, Etienne. The Church Speaks to the Modern World The Social Teachings of Leo XIII. 4ª ed. Image Books, 1957.

Cita MLA (9th ed.)

Gilson, Etienne. The Church Speaks to the Modern World The Social Teachings of Leo XIII. 4ª ed. Image Books, 1957.