APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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