Παραπομπή σε μορφή APA (7η εκδ.)

Catholic Church. Pope (1963-1978 : Paul VI). (1967). On the development of peoples: Populorum progressio. Our Sunday Visitor.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Catholic Church. Pope (1963-1978 : Paul VI). On the Development of Peoples: Populorum Progressio. Huntington, Ind.: Our Sunday Visitor, 1967.

Παραπομπή σε μορφή MLA (8th εκδ.)

Catholic Church. Pope (1963-1978 : Paul VI). On the Development of Peoples: Populorum Progressio. Our Sunday Visitor, 1967.